Effect of atomic electrons on 7.6 eV nuclear transition in $^{229}$Th$^{3+}$ (2009)
Porsev, S. G., Flambaum, V. V.
We have considered an effect of atomic electrons due to the electronic bridge process on the nuclear $^{229m}$Th -- $^{229g}$Th transition in ^{229}$Th$^{3+}$. Based on a recent experimental result...
Flambaum, V. V., Porsev, S. G.
Our calculations have shown that the 5f_5/2-7s_1/2 23131 cm^{-1} transition from the ground state in the ion Th^{3+} is very sensitive to the temporal variation of the fine structure constant alpha...
Magnetic blackbody shift of hyperfine transitions for atomic clocks (2009)
Berengut, J. C., Flambaum, V. V., King-Lacroix, J.
We derive an expression for the magnetic blackbody shift of hyperfine transitions such as the cesium primary reference transition which defines the second. The shift is found to be a complicated...
Exchange-assisted tunneling in the classical limit (2009)
The exchange interaction and correlations may produce a power-law decay instead of the usual exponential decrease of the wave function under potential barrier. The exchange-assisted tunneling...
Exchange interaction strongly influences the long-range behavior of localized electron orbitals and quantum tunneling amplitudes.In the Hartree-Fock approximation the exchange produces a power-law...
Calculation of the (T,P)-odd Electric Dipole Moment of Thallium (2009)
Parity and time invariance violating electric dipole moment of $^{205}$Tl is calculated using the relativistic Hartree-Fock and configuration interaction methods and the many-body perturbation...
According to GSI experiment Phys.Lett.B 664, 162 (2008), the rate of the daughter ion production by the K-shell electron capture (with neutrino emission) in H-like ions 142Pm, 140Pr and 152I is...
Calculation of the hyperfine structure of the superheavy elements Z=119 and Z=120+ (2009)
Dinh, T. H., Dzuba, V. A., Flambaum, V. V.
The hyperfine structure constants of the lowest $s$ and $p_{1/2}$ states of superheavy elements Z=119 and Z= 120$^+$ are calculated using {\em ab initio} approach. Core polarization and dominating...
Transition frequency shifts with fine-structure constant variation for Yb II (2009)
Porsev, S. G., Flambaum, V. V., Torgerson, J. R.
In this paper we report calculations of the relativistic corrections to transition frequencies (q factors) of Yb II for the transitions from the odd-parity states to the metastable state $4f^{13}6s^2...
Effect of quark-mass variation on big bang nucleosynthesis (2009)
Berengut, J. C., Dmitriev, V. F., Flambaum, V. V.
We calculate the effect of variation in the light-current quark mass, $m_q$, on standard big bang nucleosynthesis. A change in $m_q$ at during the era of nucleosynthesis affects nuclear reaction...
Dzuba, V. A., Flambaum, V. V., Porsev, S. G.
Electric dipole moments of diamagnetic atoms of experimental interest are calculated using the relativistic Hartree-Fock and random-phase approximation methods, the many-body perturbation theory and...
Henkel, C., Menten, K. M., Murphy, M. T., Jethava, N., Flambaum, V. V., Braatz, J. A., ...
Based on measurements with the Effelsberg 100-m telescope, a multi-line study of molecular species is presented toward the gravitational lens system PKS 1830–211, which is by far the best known...
Henkel, C., Menten, K. M., Murphy, M. T., Jethava, N., Flambaum, V. V., Braatz, J. A., ...
Based on measurements with the Effelsberg 100-m telescope, a multi-line study of molecular species is presented toward the gravitational lens system PKS1830-211. Obtaining average radial velocities...
The sensitivity of hyperfine structure to nuclear radius and quark mass variation (2009)
Dinh, T. H., Dunning, A., Dzuba, V. A., Flambaum, V. V.
To search for the temporal variation of the fundamental constants one needs to know dependence of atomic transition frequencies on these constants. We study the dependence of the hyperfine structure...
Berengut, J. C., Dzuba, V. A., Flambaum, V. V., Porsev, S. G.
The 7.6 eV electromagnetic transition between the nearly degenerate ground state and first excited state in the Th-229 nucleus may be very sensitive to potential changes in the fine-structure...
Ultracold molecules: new probes on the variation of fundamental constants (2009)
Chin, Cheng, Flambaum, V. V., Kozlov, M. G.
Ultracold molecules offer brand new opportunities to probe the variation of fundamental constants with unprecedented sensitivity. This paper summarizes theoretical background and current constraints...
AC Stark shift of the Cs microwave atomic clock transitions (2008)
Rosenbusch, P., Ghezali, S., Dzuba, V. A., Flambaum, V. V., Beloy, K., Derevianko, A.
We analyze the AC Stark shift of the Cs microwave atomic clock transition theoretically and experimentally. Theoretical and experimental data are in a good agreement with each other. Results indicate...
Calculation of the spectra of the superheavy element Z=112 (2008)
Dinh, T. H., Dzuba, V. A., Flambaum, V. V.
Accurate ab initio calculations of the energy levels of the superheavy elements Z=112 are presented. Relativistic Hartree-Fock and configuration interaction methods are combined with the many-body...
Magic frequencies for cesium primary frequency standard (2008)
Flambaum, V. V., Dzuba, V. A., Derevianko, A.
We consider microwave hyperfine transitions in the ground state of cesium and rubidium atoms which are presently used as the primary and the secondary frequency standards. The atoms are confined in...
Exchange interaction strongly influences the long-range behaviour of localised electron orbitals and quantum tunneling amplitudes. It violates the oscillation theorem (creates extra nodes) and...
Calculation of the spectrum of the superheavy element Z=120 (2008)
Dinh, T. H., Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M.
High-precision calculations of the energy levels of the superheavy element Z=120 are presented. The relativistic Hartree-Fock and configuration interaction techniques are employed. The correlations...
Micromagic clock: microwave clock based on atoms in an engineered optical lattice (2008)
Beloy, K., Derevianko, A., Dzuba, V. A., Flambaum, V. V.
We propose a new class of atomic microwave clocks based on the hyperfine transitions in the ground state of aluminum or gallium atoms trapped in optical lattices. For these elements magic wavelengths...
Comment on "Black hole constraints on varying fundamental constants" (2008)
In the Letter [1] (also [2]) there is a claim that the generalised second law of thermodynamics (entropy increase) for black holes provides some limits on the rate of variation of the fundamental...
Exchange interaction strongly influences the long-range behaviour of localised electron orbitals. It violates the oscillation theorem (creates extra nodes) and produces a power-law decay instead of...
Enhanced effect of quark mass variation in 229Th and limits from Oklo data (2008)
Flambaum, V. V., Wiringa, R. B.
The effects of the variation of the dimensionless strong interaction parameter Xq=mq/Lambda{QCD} (mq is the quark mass, Lambda{QCD} is the QCD scale) are enhanced about 1.5 x 10**5 times in the 7.6...
Flambaum, V. V., Auerbach, N., Dmitriev, V. F.
We calculated the contribution of Coulomb energy to the spacing between the ground and first excited state of $^{229}$Th nucleus as a function of the deformation parameter $\delta$. We show that...
Isotope shift calculations in Ti II (2008)
Berengut, J. C., Flambaum, V. V., Kozlov, M. G.
We present an accurate ab initio method of calculating transition energies and isotope shifts in the 3d-transition metals. It extends previous work that combines the configuration-interaction...
Calculations of the spectra of superheavy elements E119 and E120+ (2008)
Dinh, T. H., Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M.
High-precision calculations of the energy levels of the superheavy elements E119 and E120+ are presented. Dominating correlation corrections beyond relativistic Hartree-Fock are included to all...
The effect of atomic electrons on nuclear fission (2008)
We calculate correction to the nuclear fission barrier produced by the atomic electrons. The result presented in analytical form is convenient to use in future nuclear calculations. The atomic...
A brief review of the search for variation of the fine structure constant in quasar absorption spectra is presented. Special consideration is given to the role of atomic calculations in the analysis...
Search for variation of the fundamental constants in atomic, molecular and nuclear spectra (2008)
The search for variation of the fundamental constants such as the fine structure constant $\alpha$ ($\alpha=e^2/\hbar c$) and the ratios of fundamental masses (e.g., electron to proton mass ratio...
Dispelling the curse of the neutron skin in atomic parity violation (2008)
Brown, B. A., Derevianko, A., Flambaum, V. V.
We perform calculations for the neutron skin of nuclei and its contribution to atomic parity non-conservation (PNC) in many isotopes of Cs, Ba, Sm, Dy, Yb, Tl, Pb, Bi, Fr, Ra. Three problems are...
Current quark mass dependence of nucleon magnetic moments and radii (2008)
Cloet, I. C., Eichmann, G., Flambaum, V. V., Roberts, C. D., Bhagwat, M. S., Holl, A.
A calculation of the current-quark-mass-dependence of nucleon static electromagnetic properties is necessary in order to use observational data as a means to place constraints on the variation of...
Variation of fundamental constants in space and time: theory and observations (2008)
Review of recent works devoted to the temporal and spatial variation of the fundamental constants and dependence of the fundamental constants on the gravitational potential (violation of local...
Blatt, S., Ludlow, A. D., Campbell, G. K., Thomsen, J. W., Zelevinsky, T., Boyd, M. M., ...
The $^1\mathrm{S}_0$-$^3\mathrm{P}_0$ clock transition frequency $\nu_\text{Sr}$ in neutral $^{87}$Sr has been measured relative to the Cs standard by three independent laboratories in Boulder,...
Dependence of transition frequencies on the fine structure constant $\alpha=e^2/\hbar c$ is calculated for several many-electron systems which are used or planned to be used in the laboratory search...
Relativistic energy shifts of the low energy levels of Fe have been calculated using the Dirac-Hartree-Fock and configuration interaction techniques. The results are to be used in the search for the...
Studying variation of fundamental constants with molecules (2007)
Flambaum, V. V., Kozlov, M. G.
This review article is devoted to application of precision molecular spectroscopy to studies of the possible spatial and temporal variations of the fundamental constants. Both astrophysical...
Webb Barrow, M. J. Drinkwater, J. K. Webb, J. D. Barrow, V. V. Flambaum
. We have compared the frequency of high-redshift Hydrogen HI 21 cm absorption with that of associated molecular absorption in two quasars to place new (1 sigma) upper limits on any variation in y j...
New Limits on the Possible Variation of Physical Constants (2007)
M. J. Drinkwater, J. K. Webb, J. D. Barrow, V. V. Flambaum
Recent detections of high-redshift absorption by both atomic hydrogen and molecular gas in the radio spectra of quasars have provided a powerful tool to measure possible temporal and spatial...
S. J. Curran, J. K. Webb, R. Bandiera, E. Corbelli, M. T. Murphy, V. V. Flambaum
We present a catalogue of the 316 damped Lyman alpha absorbers taken from the literature. All damped Lyman alpha absorbers are included, with no selection on redshift or quasar magnitude. Of these,...
Electric dipole moments of actinide atoms and RaO molecule (2007)
We have calculated the atomic electric dipole moments (EDMs) induced in 229Pa and 225Ac by their respective nuclear Schiff moments S. The results are d(229Pa)= - 9.5 10^{-17} [S/(e fm)] e cm= - 1.1...
Muonic atoms with extreme nuclear charge (2007)
Flambaum, V. V., Johnson, W. R.
Bound muons (also pions, kaons, etc) increase the fission barrier and produce some stabilizing effects for highly charged nuclei. If the binding energy of the muon exceeds $mc^2$, it becomes stable....
Schiff Theorem Revisited (2007)
Sen'kov, R. A., Auerbach, N., Flambaum, V. V., Zelevinsky, V. G.
We carefully rederive the Schiff theorem and prove that the usual expression of the Schiff moment operator is correct and should be applied for calculations of atomic electric dipole moments. The...
Dependence of nuclear binding on hadronic mass variation (2007)
Flambaum, V. V., Wiringa, R. B.
We examine how the binding of light ($A\leq 8$) nuclei depends on possible variations of hadronic masses, including meson, nucleon, and nucleon-resonance masses. Small variations in hadronic masses...
Ferrell, S. J., Cingöz, A., Lapierre, A., Leefer, N., Budker, D., ...
Radio-frequency E1 transitions between nearly degenerate, opposite parity levels of atomic dysprosium were monitored over an eight month period to search for a variation in the fine-structure...
Atomic electric dipole moments of He and Yb induced by nuclear Schiff moments (2007)
Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M.
We have calculated the atomic electric dipole moments (EDMs) d of ^3He and ^{171}Yb induced by their respective nuclear Schiff moments S. Our results are d(He)= 8.3x10^{-5} and d(Yb)= -1.9 in units...
Variation of fundamental constants: theory and observations (2007)
Review of recent works devoted to the variation of the fundamental constants is presented including atomic clocks, quasar absorption spectra, and Oklo natural nuclear reactor data. Assuming linear...
Tunneling of a composite particle: Effects of intrinsic structure (2007)
Bertulani, C. A., Flambaum, V. V., Zelevinsky, V. G.
We consider simple models of tunneling of an object with intrinsic degrees of freedom. This important problem was not extensively studied until now, in spite of numerous applications in various areas...
Flambaum, V. V., Kozlov, M. G.
Sensitivity to temporal variation of the fundamental constants may be strongly enhanced in transitions between narrow close levels of different nature. This enhancement may be realized in a large...
Enhanced sensitivity to time-variation of m_p/m_e in the inversion spectrum of ammonia (2007)
Flambaum, V. V., Kozlov, M. G.
We calculate the sensitivity of the inversion spectrum of ammonia to possible time-variation of the ratio of the proton mass to the electron mass, mu=m_p/m_e. For the inversion transition (lambda=...
Core-valence correlations for atoms with open shells (2007)
We present an efficient method of inclusion of the core-valence correlations into the configuration interaction (CI) calculations. These correlations take place in the core area where the potential...
Influence of Meson's Widths on Yukawa-like Potentials and Lattice Correlation Functions (2007)
Flambaum, V. V., Shuryak, E. V.
Euclidean point-to-point propagators or wall-to-wall correlators related to exchange by an unstable particle(sigma,rho,omega-mesons) are modified by presence of particle width. In particular, the...
How changing physical constants and violation of local position invariance may occur? (2007)
Flambaum, V. V., Shuryak, E. V.
Light scalar fields very naturally appear in modern cosmological models, affecting such parameters of Standard Model as electromagnetic fine structure constant $\alpha$, dimensionless ratios of...
Revisiting VLT/UVES constraints on a varying fine-structure constant (2006)
Murphy, M. T., Webb, J. K., Flambaum, V. V.
Current analyses of VLT/UVES quasar spectra disagree with the Keck/HIRES evidence for a varying fine-structure constant, alpha. To investigate this we introduce a simple method for calculating the...
Calculation of energy levels and transition amplitudes for barium and radium (2006)
The radium atom is a promising system for studying parity and time invariance violating weak interactions. However, available experimental spectroscopic data for radium is insufficient for designing...
Tzanavaris, P., Murphy, M. T., Webb, J. K., Flambaum, V. V., Curran, S. J.
Nine quasar absorption spectra at 21-cm and UV rest-wavelengths are used to estimate possible variations in x=alpha^2 g_p mu, (alpha is the fine structure constant, g_p the proton g-factor and...
Variation of fundamental constants (2006)
We present a review of recent works devoted to the variation of the fine structure constant alpha, strong interaction and fundamental masses. There are some hints for the variation in quasar...
Frequency shift of cesium clock transition due to blackbody radiation (2006)
Angstmann, E. J., Dzuba, V. A., Flambaum, V. V.
We have performed ab initio calculations of the frequency shift induced by a static electric field on the cesium clock hyperfine transition. The calculations are used to find the frequency shifts due...
Frequency shift of hyperfine transitions due to blackbody radiation (2006)
Angstmann, E. J., Dzuba, V. A., Flambaum, V. V.
We have performed calculations of the size of the frequency shift induced by a static electric field on the clock transition frequencies of the hyperfine splitting in Yb+, Rb, Cs, Ba+, and Hg+. The...
The relative effects of variation of the fine structure constant alpha=e^2/hc and dimensionless strong interaction parameter m_q/Lambda_{QCD} are enhanced 5-6 orders of magnitude in very narrow...
Scattering length, which can be measured in Bose-Einstein condensate and Feshbach molecule experiments, is extremely sensitive to the variation of fundamental constants, in particular, the...
Resonance reactions and enhancement of weak interactions in collisions of cold molecules (2006)
Flambaum, V. V., Ginges, J. S. M.
With the creation of ultracold atoms and molecules, a new type of chemistry - "resonance" chemistry - emerges: chemical reactions can occur when the energy of colliding atoms and molecules matches a...
Nuclear Schiff moment in nuclei with soft octupole and quadrupole vibrations (2006)
Auerbach, N., Dmitriev, V. F., Flambaum, V. V., Lisetskiy, A., Sen'kov, R. A., Zelevinsky, V. G.
Nuclear forces violating parity and time reversal invariance (${\cal P},{\cal T}$-odd) produce ${\cal P},{\cal T}$-odd nuclear moments, for example, the nuclear Schiff moment. In turn, this moment...
Flambaum, V. V., Tedesco, A. F.
We calculate the dependence of the nuclear magnetic moments on the quark masses including the spin-spin interaction effects and obtain limits on the variation of the fine structure constant $\alpha$...
Enhanced effect of temporal variation of the fine structure constant in diatomic molecules (2006)
We show that the relative effect of variation of the fine structure constant in microwave transitions between very close and narrow rotational-hyperfine levels may be enhanced 2-3 orders of magnitude...
Coulomb problem for vector bosons (2005)
Kuchiev, M. Yu., Flambaum, V. V.
The Coulomb problem for vector bosons W incorporates a well known difficulty; the charge of the boson localized in a close vicinity of the attractive Coulomb center proves be infinite. This fact...
Breit Interaction and Parity Non-conservation in Many-Electron Atoms (2005)
Dzuba, V. A., Flambaum, V. V., Safronova, M. S.
We present accurate {\em ab initio} non-perturbative calculations of the Breit correction to the parity non-conserving (PNC) amplitudes of the $6s-7s$ and $6s-5d_{3/2}$ transitions in Cs, $7s-8s$ and...
Possible evidence for "dark radiation" from Big Bang Nucleosynthesis Data (2005)
Flambaum, V. V., Shuryak, E. V.
We address the emerging discrepancy between the Big Bang Nucleosynthesis data and standard cosmology, which asks for a bit longer evolution time. If this effect is real, one possible implication (in...
A New Option for a Search for Alpha Variation: Narrow Transitions with Enhanced Sensitivity (2005)
Karshenboim, S. G., Nevsky, A. Yu., Angstmann, E. J., Dzuba, V. A., Flambaum, V. V.
We consider several transitions between narrow lines that have an enhanced sensitivity to a possible variation of the fine structure constant, alpha. This enhancement may allow a search to be...
Coulomb problem for vector bosons versus Standard Model (2005)
Kuchiev, M. Yu., Flambaum, V. V.
The Coulomb problem for vector bosons W(+/-) propagating in an attractive Coulomb field incorporates a known difficulty, i.e. the total charge of the boson localized on the Coulomb center turns out...
Sigma Terms of Light-Quark Hadrons (2005)
Flambaum, V. V., Hoell, A., Jaikumar, P., Roberts, C. D., Wright, S. V.
A calculation of the current-quark mass dependence of hadron masses can help in using observational data to place constraints on the variation of nature's fundamental parameters. A hadron's...
Configuration interaction in many-electron atoms may cause anomalies in the fine structure which make the intervals small and very sensitive to variation of the fine structure constant. Repeated...
Calculation of isotope shifts and relativistic shifts in CI, CII, CIII and CIV (2005)
Berengut, J. C., Flambaum, V. V., Kozlov, M. G.
We present an accurate ab initio method of calculating isotope shifts and relativistic shifts in atomic spectra. We test the method on neutral carbon and three carbon ions. The relativistic shift of...
Parity nonconservation in Atomic Zeeman Transitions (2005)
Angstmann, E. J., Dinh, T. H., Flambaum, V. V.
We discuss the possibility of measuring nuclear anapole moments in atomic Zeeman transitions and perform the necessary calculations. Advantages of using Zeeman transitions include variable transition...
Improved calculation of relativistic shift and isotope shift in Mg I (2005)
Berengut, J. C., Flambaum, V. V., Kozlov, M. G.
We present an ab initio method of calculation of isotope shift and relativistic shift in atoms with a few valence electrons. It is based on an energy calculation involving combination of the...
Flambaum, V. V., Ginges, J. S. M.
We derive an approximate expression for a "radiative potential" which can be used to calculate QED strong Coulomb field radiative corrections to energies and electric dipole (E1) transition...
Lisetskiy, A. F., Flambaum, V. V., Zelevinsky, V. G.
Nuclear forces violating parity and time reversal invariance P,T-odd produce P,T-odd nuclear moments, for example, the nuclear Schiff moment. In turn, this moment can induce the electric dipole...
Relativistic corrections to the nuclear Schiff moment (2005)
Dmitriev, V. F., Flambaum, V. V.
Parity and time invariance violating ($P,T$-odd) atomic electric dipole moments (EDM) are induced by interaction between atomic electrons and nuclear $P,T$-odd moments which are produced by $P,T$-odd...
Causality condition and reflection on event horizon (2005)
Kuchiev, M. Yu., Flambaum, V. V.
A new way to implement the causality condition on the event horizon of black holes is discovered. The metric of a black hole is shown to be a function of the complex-valued gravitational radius r_g...
Sensitivity of atomic transition frequencies to variation of the fine structure constant $\alpha=e^2/\hbar c$ increases proportional to $Z^2$ where $Z$ is the nuclear charge. Recently several lines...
Tzanavaris, P., Webb, J. K., Murphy, M. T., Flambaum, V. V., Curran, S. J.
Quasar absorption spectra at 21-cm and UV rest-wavelengths are used to estimate the time variation of x=alpha^2 g_p mu, where alpha is the fine structure constant, g_p the proton g factor, and...
Quantum tunneling of a complex systems: effects of finite size and intrinsic structure (2004)
Flambaum, V. V., Zelevinsky, V. G.
A simple model is considered to study the effects of finite size and internal structure in the tunneling of bound two-body systems through a potential barrier. It is demonstrated that these effects...
Berengut, J. C., Dzuba, V. A., Flambaum, V. V., Marchenko, M. V.
We calculate the dependence of atomic transition frequencies on the fine structure constant, $\alpha = e^2/\hbar c$, for some ions of Ti, Mn, Na, C, and O. The results of these calculations will be...
Tunneling into black hole, escape from black hole, reflection from horizon and pair creation (2004)
Within classical general relativity, a particle cannot reach the horizon of a black hole during a finite time, in the reference frame of an external observer; a particle inside cannot escape from a...
Berengut, J. C., Dzuba, V. A., Flambaum, V. V., Kozlov, M. G., Marchenko, M. V., Murphy, M. T., ...
Theories unifying gravity with other interactions suggest spatial and temporal variation of fundamental ``constants'' in the Universe. A change in the fine structure constant, alpha, could be...
Space-time variation of the fine structure constant and evolution of isotope abundances (2004)
Kozlov, M. G., Korol, V. A., Berengut, J. C., Dzuba, V. A., Flambaum, V. V.
At present several groups are analyzing astrophysical data in a search for time-variation of the fine structure constant $\alpha$. Here we discuss how to exclude systematic effects caused by the...
Atomic Clocks and the Search for Variation of the Fine Structure Constant (2004)
Angstmann, E. J., Dzuba, V. A., Flambaum, V. V.
Evidence that the fine structure constant, alpha, was different in an early epoch has recently been found in quasar (QSO) absorption spectra. An accurate laboratory measurement of alpha variation...
Reflection on event horizon and escape of particles from confinement inside black holes (2004)
Kuchiev, M. Yu., Flambaum, V. V.
Several recently found properties of the event horizon of black holes are discussed. One of them is the reflection of the incoming particles on the horizon. A particle approaching the black hole can...
Limits on a Dynamically Varying Fine Structure Constant (2004)
Angstmann, E. J., Flambaum, V. V., Karshenboim, S. G.
We show that using the modified form of the Dirac Hamiltonian as suggested by Bekenstein, does not affect the analysis in [1-4] of QSO data pertaining to a measurement of alpha variation. We obtain...
Angstmann, E. J., Dzuba, V. A., Flambaum, V. V.
We perform accurate calculations of the dependence of transition frequencies in two valence electron atoms and ions on a variation of the fine structure constant, alpha. The relativistic Hartree-Fock...
Berengut, J. C., Dzuba, V. A., Flambaum, V. V., Marchenko, M. V.
We use the relativistic Hartree-Fock method, many-body perturbation theory and configuration-interaction method to calculate the dependence of atomic transition frequencies on the fine structure...
Cosmological Variation of the Fine Structure Constant versus a new Interaction (2004)
Angstmann, E. J., Flambaum, V. V., Karshenboim, S. G.
We show why a dynamically varying fine structure constant does not impact on the Webb group's analysis as suggested by Bekenstein. We also provide a limit on the size of a possible correction to the...
Flambaum, V. V., Leinweber, D. B., Thomas, A. W., Young, R. D.
We perform calculations of the dependence of nuclear magnetic moments on quark masses and obtain limits on the variation of $(m_q/\Lambda_{QCD})$ from recent measurements of hydrogen hyperfine (21...
Configuration interaction calculation for the isotope shift in Mg I (2003)
Berengut, J. C., Dzuba, V. A., Flambaum, V. V., Kozlov, M. G.
We present an ab initio method of calculation of isotope shift in atoms with a few valence electrons, based on the configuration-interaction calculation of energy. The main motivation for developing...
Exponential enhancement of nuclear reactions in condensed matter environment (2003)
Kuchiev, M. Yu., Altshuler, B. L., Flambaum, V. V.
A mechanism that uses the environment to enhance the probability of the nuclear reaction when a beam of accelerated nuclei collides with a target nucleus implanted in condensed matter is suggested....
Scattering of scalar particles by a black hole (2003)
Kuchiev, M. Yu., Flambaum, V. V.
The absorption cross section for scalar particle impact on a Schwarzschild black hole is found. The process is dominated by two physical phenomena. One of them is the well-known greybody factor that...
Dmitriev, V. F., Flambaum, V. V., Webb, J. K.
We use Big Bang Nucleosynthesis calculations and light element abundance data to constrain the relative variation of the deuteron binding energy since the universe was a few minutes old, $\delta Q =...
Murphy, M. T., Flambaum, V. V., Webb, J. K., Dzuba, V. V., Prochaska, J. X., Wolfe, A. M.
We present evidence for variations in the fine-structure constant from Keck/HIRES spectra of 143 quasar absorption systems over the redshift range 0.2 < z_abs < 4.2. This includes 15 new systems,...
We perform calculations of the dependence of nuclear magnetic moments on quark masses and obtain limits on the variation of the ratio of quark mass and strong interaction scale (m_q/Lambda_{QCD})...
Ginges, J. S. M., Flambaum, V. V.
High-precision measurements of violations of fundamental symmetries in atoms are a very effective means of testing the standard model of elementary particles and searching for new physics beyond it....
Murphy, M. T., Webb, J. K., Flambaum, V. V.
[Abridged] We previously presented evidence for a varying fine-structure constant, alpha, in two independent samples of Keck/HIRES QSO spectra. Here we present a detailed many-multiplet analysis of a...
Dzuba, V. A., Flambaum, V. V., Marchenko., M. V.
A possibility for fundamental constants to vary in time is suggested by theories unifying gravity with other interactions. In this article we examine proposals to use optical transitions of Sr, Dy,...
Isotope shift calculations for atoms with one valence electron (2003)
Berengut, J. C., Dzuba, V. A., Flambaum, V. V.
This work presents a method for the ab initio calculation of isotope shift in atoms and ions with one valence electron above closed shells. As a zero approximation we use relativistic Hartree-Fock...
Radiative corrections to parity-non-conservation in atoms (2003)
Kuchiev, M. Yu., Flambaum, V. V.
Recent progress in calculations of QED radiative corrections to parity nonconservation in atoms is reviewed. The QED vacuum polarization, the self-energy corrections and the vertex corrections are...
We perform calculations of the dependence of nuclear magnetic moments on quark masses and obtain limits on the variation of m_q/Lambda_{QCD} from recent atomic clock experiments with hyperfine...
Flambaum, V. V., Shuryak, E. V.
We follow our previous paper on possible cosmological variation of weak scale (quark masses) and strong scale, inspired by data on cosmological variation of the electromagnetic fine structure...
Webb, J. K., Murphy, M. T., Flambaum, V. V., Curran, S. J.
We report preliminary results from a third sample of quasar absorption line spectra from the Keck telescope which has been studied to search for any possible variation of the fine structure constant,...
Does the fine structure constant vary? A detailed investigation into systematic effects (2002)
Murphy, M. T., Webb, J. K., Flambaum, V. V., Curran, S. J.
We have previously presented 5.7-sigma evidence for a smaller alpha at redshifts 0.2 < z_abs < 3.7 from a sample of 128 Keck/HIRES quasar absorption systems: da/a = (-0.57 +/- 0.10) x 10^{-5}. A...
Time evolution of the fine structure constant (2002)
Murphy, M. T., Webb, J. K., Flambaum, V. V., Curran, S. J.
We present a short review of the current quasar (QSO) absorption line constraints on possible variation of the fine structure constant, alpha = e^2/(hbar*c). Particular attention is paid to recent...
Limits on cosmological variation of quark masses and strong interaction (2002)
Dmitriev, V. F., Flambaum, V. V.
We discuss limits on variation of $(m_q/\Lambda_{QCD})$. The results are obtained by studying $n-\alpha$-interaction during Big Bang, Oklo natural nuclear reactor data and limits on variation of the...
Comment on ``Radiative corrections and parity nonconservation in heavy atoms'' (2002)
Kuchiev, M. Yu., Flambaum, V. V.
Very brief summary of the most recent developments in an area of QED corrections to the parity nonconservation in atoms is presented. Main conclusion - experimental results of Wood et al do not...
Flambaum, V. V., Zelevinsky, V. G.
Parity and time invariance violating (${\cal P},{\cal T}$-odd) nuclear forces produce ${\cal P},{\cal T}$-odd nuclear moments, for example, the nuclear Schiff moment. In turn, this moment can induce...
Comment on "Black holes constrain varying constants" (2002)
A recent paper [DDL] claims that the increase of the proton electric charge e leads to a (forbidden) decrease of black hole entropy, therefore, possible evidence for variation of $\alpha=e^2/\hbar c$...
Molecular Bose-Einstein condensate as an amplifier of weak interactions (2002)
Flambaum, V. V., Ginges, J. S. M.
Collisions and chemical reactions of molecules in Bose-Einstein condensates (BECs) are extremely sensitive to weak fields. This sensitivity arises due to the high density of compound resonances and a...
In a recent paper [1] Lineweaver and Davis performed a statistical analysis to claim that the rapidity of biogenesis on Earth indicates high probability of biogenesis on terrestrial- type planets. We...
QED radiative corrections to parity nonconservation in heavy atoms (2002)
Kuchiev, M. Yu., Flambaum, V. V.
The self-energy and vertex QED radiative corrections (Z alpha^2 f(Z alpha)) are shown to give a large negative contribution to the parity nonconserving (PNC) amplitude in heavy atoms. The correction...
Curran, S. J., Webb, J. K., Murphy, M. T., Bandiera, R., Corbelli, E., Flambaum, V. V.
We present a catalogue of the 322 damped Lyman alpha absorbers taken from the literature. All damped Lyman alpha absorbers are included, with no selection on redshift or quasar magnitude. Of these,...
Influence of perturbations on the electron wave function inside the nucleus (2002)
Kuchiev, M. Yu., Flambaum, V. V.
A variation of the valence electron wave function inside a nucleus induced by a perturbative potential is expressed in terms of the potential momenta. As an application we consider QED vacuum...
Precise calculation of parity nonconservation in cesium and test of the standard model (2002)
Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M.
We have calculated the 6s-7s parity nonconserving (PNC) E1 transition amplitude, E_{PNC}, in cesium. We have used an improved all-order technique in the calculation of the correlations and have...
Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M., Kozlov, M. G.
We have calculated the atomic electric dipole moments (EDMs) induced in ^{199}Hg, ^{129}Xe, ^{223}Rn, ^{225}Ra, and ^{239}Pu by their respective nuclear Schiff moments S. The results are (in units...
Flambaum, V. V., Shuryak, E. V.
Recent data on cosmological variation of the electromagnetic fine structure constant from distant quasar (QSO) absorption spectra have inspired a more general discussion of possible variation of...
Dzuba, V. A., Flambaum, V. V., Kozlov, M. G., Marchenko, M.
We performed accurate calculation of $\alpha$-dependence ($\alpha=e^2/hc$) of the transition frequencies for ions, which are used in a search for the variation of the fine structure constant $\alpha$...
Superconducting transition temperature of MgB_2 H_0.03 is higher than that of MgB_2 (2001)
Flambaum, V. V., Stewart, G. A., Russell, G. J., Horvat, J., Dou, S. X.
Hydrogenation of MgB_2 powder has lead to an increase in the superconducting temperature, as determined by ac susceptibility. Applied dc fields reduce the transition temperature in the same ratio as...
Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M.
We have calculated the 6s-7s parity nonconserving E1 transition amplitude (E_{PNC}) in cesium. This calculation has been performed with higher numerical accuracy than our 1989 calculation [V.A....
Murphy, M. T., Webb, J. K., Flambaum, V. V., Drinkwater, M. J., Combes, F., Wiklind, T.
Quasar (QSO) absorption spectra provide an extremely useful probe of possible cosmological variation in various physical constants. Comparison of H i 21-cm absorption with corresponding molecular...
Flambaum, V. V., Izrailev, F. M.
We study the time evolution of occupation numbers for interacting Fermi-particles in the situation when exact compound states are "chaotic". This situation is generic for highly excited...
The nuclear Schiff moment and time invariance violation in atoms (2001)
Flambaum, V. V., Ginges, J. S. M.
Parity and time invariance violating (P,T-odd) nuclear forces produce P,T-odd nuclear moments. In turn, these moments can induce electric dipole moments (EDMs) in atoms through the mixing of electron...
Electron recombination with multicharged ions via chaotic many-electron states (2001)
Flambaum, V. V., Gribakina, A. A., Gribakin, G. F., Harabati, C.
We show that a dense spectrum of chaotic multiply-excited eigenstates can play a major role in collision processes involving many-electron multicharged ions. A statistical theory based on chaotic...
Flambaum, V. V., Izrailev, F. M.
Highly excited many-particle states in quantum systems such as nuclei, atoms, quantum dots, spin systems, quantum computers etc., can be considered as ``chaotic'' superpositions of mean-field basis...
Unconventional decay law for excited states in closed many-body systems (2001)
Flambaum, V. V., Izrailev, F. M.
We study the time evolution of an initially excited many-body state in a finite system of interacting Fermi-particles in the situation when the interaction gives rise to the ``chaotic'' structure of...
Murphy, M. T., Webb, J. K., Flambaum, V. V., Drinkwater, M. J., Combes, F., Wiklind, T.
QSO absorption spectra provide an extremely useful probe of possible cosmological variation in various physical constants. Comparison of H I 21cm absorption with corresponding molecular (rotational)...
Calculations of parity nonconserving s-d transitions in Cs, Fr, Ba II, and Ra II (2001)
Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M.
We have performed ab initio mixed-states and sum-over-states calculations of parity nonconserving (PNC) electric dipole (E1) transition amplitudes between s-d electron states of Cs, Fr, Ba II, and Ra...
Murphy, M. T., Webb, J. K., Flambaum, V. V., Drinkwater, M. J., Combes, F., Wiklind, T.
Quasar (QSO) absorption spectra provide an extremely useful probe of possible cosmological variation in various physical constants. Comparison of H i 21-cm absorption with corresponding molecular...
Murphy, M. T., Webb, J. K., Flambaum, V. V., Drinkwater, M. J., Combes, F., Wiklind, T.
Quasar (QSO) absorption spectra provide an extremely useful probe of possible cosmological variation in various physical constants. Comparison of H i 21-cm absorption with corresponding molecular...
Further Evidence for Cosmological Evolution of the Fine Structure Constant (2001)
Barrow, J. D., Dzuba, V. A., Flambaum, V. V., Murphy, M. T., Webb, J. K.
Further Evidence for Cosmological Evolution of the Fine Structure Constant (2000)
Webb, J. K., Murphy, M. T., Flambaum, V. V., Dzuba, V. A., Barrow, J. D., Churchill, C. W., ...
We describe the results of a search for time variability of the fine structure constant, alpha, using absorption systems in the spectra of distant quasars. Three large optical datasets and two...
Murphy, M. T., Webb, J. K., Flambaum, V. V., Dzuba, V. A., Churchill, C. W., Prochaska, J. X., ...
An experimental search for variation in the fundamental coupling constants is strongly motivated by modern high-energy physics theories. Comparison of quasar absorption line spectra with laboratory...
Murphy, M. T., Webb, J. K., Flambaum, V. V., Churchill, C. W., Prochaska, J. X.
Comparison of quasar absorption spectra with laboratory spectra allow us to probe possible variations in the fundamental constants over cosmological time-scales. In a companion paper we present an...
Murphy, M. T., Webb, J. K., Flambaum, V. V., Prochaska, J. X., Wolfe, A. M.
Comparison of quasar absorption line spectra with laboratory spectra provides a precise probe for variability of the fine structure constant, alpha, over cosmological time-scales. We constrain...
Relativistic effects in Ni II and the search for variation of the fine structure constant (2000)
Dzuba, V. A., Flambaum, V. V., Murphy, M. T., Webb, J. K.
Theories unifying gravity and other interactions suggest the possibility of spatial and temporal variation of physical ``constants'' in the Universe. Detection of high redshift absorption systems...
Parity and time reversal violating nuclear polarizability (2000)
Flambaum, V. V., Ginges, J. S. M., Mititelu, G.
We propose a nuclear mechanism which can induce an atomic electric dipole moment (EDM). Parity and time reversal violating (P,T-odd) nuclear forces generate a mixed P,T-odd nuclear polarizability...
Kuchiev, M. Yu., Altshuler, B. L., Flambaum, V. V.
In conventional nuclear experiments a beam of accelerated nuclei collides with a target nucleus that is surrounded by other nuclei in a molecule, in condensed matter, or in a plasma environment. It...
"Colliding beam" enhancement mechanism of deuteron-deuteron fusion reactions in matter (2000)
Altshuler, B. L., Flambaum, V. V., Kuchiev, M. Yu., Zelevinsky, V. G.
We suggest a ``ping-pong'' mechanism of enhancement for fusion reactions between a low energy external deuteron beam and the deuterons in a condensed matter or molecular target. The mechanism is...
Off-Diagonal Hyperfine Interaction and Parity Non-conservation in Cesium (2000)
We have performed relativistic many-body calculations of the hyperfine interaction in the $6s$ and $7s$ states of Cs, including the off-diagonal matrix element. The calculations were used to...
Calculation of positron binding to silver and gold atoms (2000)
Dzuba, V. A., Flambaum, V. V., Harabati, C.
Positron binding to silver and gold atoms was studied using a fully {\it ab initio} relativistic method, which combines the configuration interaction method with many-body perturbation theory. It was...
Atom made from charged elementary black hole (2000)
Flambaum, V. V., Berengut, J. C.
It is believed that there may have been a large number of black holes formed in the very early universe. These would have quantised masses. A charged ``elementary black hole'' (with the minimum...
Calculation of parity and time invariance violation in the radium atom (1999)
Dzuba, V. A., Flambaum, V. V., Ginges, J. S. M.
Parity (P) and time (T) invariance violating effects in the Ra atom are strongly enhanced due to close states of opposite parity, the large nuclear charge Z and the collective nature of P,T-odd...
Unusual statistics of interference effects in neutron scattering from compound nuclei (1999)
Berengut, J. C., Flambaum, V. V., Gribakin, G. F.
We consider interference effects between p-wave resonance scattering amplitude and background s-wave amplitude in low-energy neutron scattering from a heavy nucleus which goes through the compound...
Time dynamics in chaotic many-body systems: can chaos destroy a quantum computer? (1999)
Highly excited many-particle states in quantum systems (nuclei, atoms, quantum dots, spin systems, quantum computers) can be ``chaotic'' superpositions of mean-field basis states (Slater...
Flambaum, V. V., Kuchiev, M. Yu.
As it is well known there may arise situations when an interaction between electrons is attractive. A weak attraction should manifest itself strongly in 1D systems, since it can create two-electron...
Atomic optical clocks and search for variation of the fine structure constant (1999)
Dzuba, V. A., Flambaum., V. V.
Theories unifying gravity and other interactions suggest the possibility of spatial and temporal variation of physical ``constants''. Accuracy achieved for the atomic optical frequency standards...
Calculation of the positron bound state with the copper atom (1999)
Dzuba, V. A., Flambaum, V. V., Gribakin, G. F., Harabati, C.
A new relativistic method for calculation of positron binding to atoms is presented. The method combines a configuration interaction treatment of the valence electron and the positron with a...
Enhancement of parity and time invariance violation in Radium atom (1999)
There are several factors which lead to a huge enhancement of parity and time invariance violating effects in the Ra atom: very close electronic levels of opposite parity, the large nuclear charge Z...
Ponomarev, I. V., Flambaum, V. V., Efros, A. L.
We calculate the singlet-triplet splitting for a couple of two-dimensional electrons in the potential of two positively charged impurities which are located out of plane. We consider different...
Spin structure of impurity band of semiconductors in two and three-dimensional cases (1999)
Ponomarev, I. V., Flambaum, V. V., Efros, A. L.
The exchange interaction between electrons located at different randomly distributed impurities is studied for small density of impurities. The singlet-triplet splitting 2J(R) is calculated for two...
Realistic model of correlated disorder and Anderson localization (1999)
Flambaum, V. V., Sokolov, V. V.
A conducting 1D chain or 2D film inside (or on the surface of) an insulator is considered. Impurities displace the charges inside the insulator. This results in a long-range fluctuating electric...
Realistic model of correlated disorder and Anderson localization (1999)
A conducting 1D line or 2D plane inside (or on the surface of) an insulator is considered.Impurities displace the charges inside the insulator. This results in a long-range fluctuating electric field...
Excited Eigenstates and Strength Functions for Isolated Systems of Interacting Particles (1998)
Flambaum, V. V., Izrailev, F. M.
Eigenstates in finite systems such as nuclei, atoms, atomic clusters and quantum dots with few excited particles are chaotic superpositions of shell model basis states. We study criterion for the...
Quantum M\"{u}nchhausen effect in tunneling (1998)
Flambaum, V. V., Zelevinsky, V. G.
It is demonstrated that radiative corrections increase tunneling probability of a charged particle.
Enhancement factor for the electron electric dipole moment in francium and gold atoms (1998)
Byrnes, T. M. R., Dzuba, V. A., Flambaum, V. V., Murray, D. W.
If electrons had an electric dipole moment (EDM) they would induce EDMs of atoms. The ratio of the atomic EDM to the electron EDM for a particular atom is called the enhancement factor, R. We...
Gribakin, G. F., Gribakina, A. A., Flambaum, V. V.
We show that the spectrum and eigenstates of open-shell multicharged atomic ions near the ionization threshold are chaotic, as a result of extremely high level densities of multiply excited electron...
Gribakin, G. F., Gribakina, A. A., Flambaum, V. V.
We show that the spectrum and eigenstates of open-shell multicharged atomic ions near the ionization threshold are chaotic, as a result of extremely high level densities of multiply excited electron...
Dzuba, V. A., Flambaum, V. V., Webb., J. K.
Theories unifying gravity and other interactions suggest the possibility of spatial and temporal variation of physical ``constants'' in the Universe. Detection of high-redshift absorption systems...
Murray, D. W., Flambaum, V. V.
We consider a mechanism by which dyons (electrically charged magnetic monopoles) can produce both a T- and P-odd (i.e. time reversal invariance and parity violating) mixed polarizability beta...
Spin-spin interaction and magnetic state of 2-D Wigner crystal (1998)
Ponomarev, I. V., Flambaum, V. V., Sushkov, O. P.
It is demonstrated that there is anti-ferromagnetic spin-spin interaction between nearest electrons in the 2D Wigner crystal. This is also valid for the Wigner liquid - the state with destroyed...
Space-Time Variation of Physical Constants and Relativistic Corrections in Atoms (1998)
Dzuba, V. A., Flambaum, V. V., Webb., J. K.
Detection of high-redshift absorption in the optical spectra of quasars have provided a powerful tool to measure spatial and temporal variations of physical ``constants'' in the Universe. It is...
Statistics of electromagnetic transitions as a signature of chaos in many-electron atoms (1998)
Flambaum, V. V., Gribakina, A. A., Gribakin, G. F.
Using a configuration interaction approach we study statistics of the dipole matrix elements (E1 amplitudes) between the 14 lower odd states with J=4 and 21st to 100th even states with J=4 in the Ce...
New Limits on the Possible Variation of Physical Constants (1997)
Drinkwater, M. J., Webb, J. K., Barrow, J. D., Flambaum, V. V.
Recent detections of high-redshift absorption by both atomic hydrogen and molecular gas in the radio spectra of quasars have provided a powerful tool to measure possible temporal and spatial...
Interaction-Driven Equilibrium and Statistical Laws in Small Systems. The Cerium Atom (1997)
Flambaum, V. V., Gribakina, A. A., Gribakin, G. F., Ponomarev, I. V.
It is shown that statistical mechanics is applicable to isolated quantum systems with finite numbers of particles, such as complex atoms, atomic clusters, or quantum dots in solids, where the...
Can We Apply Statistical Laws to Small Systems? the Cerium Atom (1997)
Flambaum, V. V., Gribakina, A. A., Gribakin, G. F., Ponomarev, I. V.
It is shown that statistical mechanics is applicable to quantum systems with finite numbers of particles, such as complex atoms, atomic clusters, etc., where the residual two-body interaction is...
Limits on the Variability of Physical Constants (1997)
Drinkwater, M. J., Webb, J. K., Barrow, J. D., Flambaum, V. V.
We have compared the frequency of high-redshift Hydrogen HI 21 cm absorption with that of associated molecular absorption in two quasars to place new (1 sigma) upper limits on any variation in y =...
Dzuba, V. A., Flambaum, V. V., Sushkov, O. P.
A semi-empirical calculation of the 6s - 7s Stark amplitude $\alpha$ in Cs has been performed using the most accurate measurements and calculations of the electromagnetic amplitudes available. This...
Statistical Theory of Finite Fermi-Systems Based on the Structure of Chaotic Eigenstates (1997)
Flambaum, V. V., Izrailev, F. M.
The approach is developed for the description of isolated Fermi-systems with finite number of particles, such as complex atoms, nuclei, atomic clusters etc. It is based on statistical properties of...
Approximate analytical formulas for the self-consistent renormalization of P,T-odd and P-odd weak nuclear potentials by the residual nucleon-nucleon strong interaction are derived. The contact...
A method to calculate the mean squared matrix element of weak interaction between compound states is developed. The result is expressed in terms of matrix elements of the nucleon-nucleon strong and...
Criteria for the onset of chaos in finite Fermi systems (1997)
Flambaum, V. V., Gribakin, G. F., Sushkov, O. P.
The paper in its present form has been withdrawn.
Time invariance violating nuclear electric octupole moments (1997)
Flambaum, V. V., Murray, D. W., Orton, S. R.
The existence of a nuclear electric octupole moment (EOM) requires both parity and time invariance violation. The EOMs of odd $Z$ nuclei that are induced by a particular T- and P-odd interaction are...
The anapole moment and nucleon weak interactions (1997)
Flambaum, V. V., Murray, D. W.
From the recent measurement of parity nonconservation (PNC) in the Cs atom we have extracted the constant of the nuclear spin dependent electron-nucleon PNC interaction, $\kappa = 0.442 (63)$; the...
Enhanced T-odd P-odd Electromagnetic Moments in Reflection Asymmetric Nuclei (1996)
Spevak, V., Auerbach, N., Flambaum, V. V.
Collective P- and T- odd moments produced by parity and time invariance violating forces in reflection asymmetric nuclei are considered. The enhanced collective Schiff, electric dipole and octupole...
Flambaum, V. V., Izrailev, F. M.
New method is developed for calculation of single-particle occupation numbers in finite Fermi systems of interacting particles. It is more accurate than the canonical distribution method and gives...
Flambaum, V. V., Gribakin, G. F., Izrailev, F. M.
It is shown that the two-body character of the interaction in a many-body system gives rise to specific correlations between the components of compound states, even if this interaction is completely...
Flambaum, V. V., Izrailev, F. M., Casati, G.
The model of Fermi particles with random two-body interaction is investigated. This model allows to study the origin and accuracy of statistical laws in few-body systems, the role of interaction and...
Flambaum, V. V., Murray, D. W.
A radial magnetic field can induce a time invariance violating electric dipole moment (EDM) in quantum systems. The EDMs of the Tl, Cs, Xe and Hg atoms and the neutron that are produced by such a...
Vorov, O. K., Auerbach, N., Flambaum, V. V.
The structure of the collective low-energy $J^{\pi}=0^{-}$ (T=0 and T=1) modes is studied for a doubly magic nucleus in a schematic analytic model of RPA. The $0^{-}$ phonon states ($T= 0,1$) lie at...
Collective T- and P- Odd Electromagnetic Moments in Nuclei with Octupole Deformations (1996)
Auerbach, N., Flambaum, V. V., Spevak, V.
Parity and time invariance violating forces produce collective P- and T- odd moments in nuclei with static octupole deformation. Collective Schiff moment, electric octupole and dipole and also...
Possible doublet mechanism for a regular component of parity violation in neutron scattering (1994)
Flambaum, V. V., Zelevinsky, V. G.
A nucleus with octupole deformation of the mean field reveals rotational doublets with the same angular momentum and opposite parity. Mediated by the Coriolis-type interaction, the doublet structure...
Manifestations of P-,T-odd weak interaction between nucleons in nucleus are considered. Renormalization of this interaction due to residual strong interaction is studied. Mean squared matrix elements...
Two-nucleon parity nonconserving (PNC) interaction induced by the single-particle PNC weak potential and the two-nucleon residual strong interaction is considered. An approximate analytical formula...
Flambaum, V. V., Kuchiev, M. Yu., Sushkov, O. P.
Long-range $(r \sim p_F^{-1} \gg lattice \ spacing)$ spin-wave exchange produces a very strong pairing of the holes. The different symmetry solutions of BCS-type equation for the superconducting gap...