Spin-dependent boundary conditions for isotropic superconducting Green's functions (2009)
Cottet, Audrey, Huertas-Hernando, Daniel, Belzig, Wolfgang, Nazarov, Yuli V.
The quasiclassical theory of superconductivity provides the most successful description of diffusive heterostructures comprising superconducting elements, namely, the Usadel equations for isotropic...
The Josephson light-emitting diode (2009)
Recher, Patrik, Nazarov, Yuli V., Kouwenhoven, Leo P.
We consider an optical quantum dot where an electron level and a hole level are coupled to respective superconducting leads. We find that electrons and holes recombine producing photons at discrete...
Elementary Charge Transfer Processes in Mesoscopic Conductors (2008)
Vanevic, Mihajlo, Nazarov, Yuli V., Belzig, Wolfgang
We determine charge transfer statistics in a quantum conductor driven by a time-dependent voltage and identify the elementary transport processes. At zero temperature unidirectional and bidirectional...
Nuclear Tuning and Detuning of the Electron Spin Resonance in a Quantum Dot (2007)
Danon, Jeroen, Nazarov, Yuli V.
We study nuclear spin dynamics in a quantum dot close to the conditions of electron spin resonance. We show that at small frequency mismatch the nuclear field detunes the resonance. Remarkably, at...
Mesoscopic fluctuations of spin currents (2007)
Spin currents may be generated by applying bias voltages V to the nanostructures even in the absence of spin-active ferromagnetic interfaces. Most theoretical proposals concentrate on a concrete...
Full Counting Statistics and Field Theory (2007)
We review the relations between the full counting statistics and the field theory of electric circuits. We demonstrate that for large conductances the counting statistics is determined by non-trivial...
Wei, Hongduo, Nazarov, Yuli V.
We address continuous weak linear quantum measurement and argue that it is best understood in terms of statistics of the outcomes of the linear detectors measuring a quantum system, for example, a...
Elementary events of electron transfer in a voltage-driven quantum point contact (2007)
Vanevic, Mihajlo, Nazarov, Yuli V., Belzig, Wolfgang
We show that the statistics of electron transfer in a coherent quantum point contact driven by an arbitrary time-dependent voltage is composed of elementary events of two kinds: unidirectional...
Overscreening Diamagnetism in Cylindrical Superconductor-normal Metal-heterostructures (2007)
Belzig, Wolfgang, Bruder, Christoph, Nazarov, Yuli V.
We study the linear diamagnetic response of a superconducting cylinder coated by a normal-metal layer due to the proximity effect using the clean limit quasiclassical Eilenberger equations. We...
Elementary events of electron transfer in a voltage-driven quantum point contact (2007)
Vanevíc, Mihajlo, Nazarov, Yuli V., Belzig, Wolfgang
We show that the statistics of electron transfer in a coherent quantum point contact driven by an arbitrary time-dependent voltage is composed of elementary events of two kinds: unidirectional...
Supercurrent reversal in quantum dots (2006)
Van Dam, Jorden A., Nazarov, Yuli V., De Franceschi, Silvano, Kouwenhoven, Leo P.
When two superconductors become electrically connected by a weak link a zero-resistance supercurrent can flow. This supercurrent is carried by Cooper pairs of electrons with a combined charge of...
Full Counting Statistics of Non-Commuting Variables: the Case of Spin Counts (2005)
Di Lorenzo, Antonio, Campagnano, Gabriele, Nazarov, Yuli V.
We discuss the Full Counting Statistics of non-commuting variables with the measurement of successive spin counts in non-collinear directions taken as an example. We show that owing to an irreducible...
Electron Transport in Double Quantum Dot governed by Nuclear Magnetic Field (2005)
Jouravlev, Oleg N., Nazarov, Yuli V.
We investigate theoretically electron transfer in a doble dot in a situation where it is governed by nuclear magnetic field: This has been recently achieved in experiment. We show how to partially...
Full Counting Statistics with Spin-sensitive Detectors reveals Spin-singlets (2004)
Di Lorenzo, Antonio, Nazarov, Yuli V.
We study the full counting statistics of electric current to several drain terminals with spin-dependent entrance conductances. We show that the statistics of charge transfers can be interpreted in...
Evolution of a localized electron spin in a nuclear spin environment (2004)
Erlingsson, Sigurdur I., Nazarov, Yuli V.
Motivated by recent interest in the role of the hyperfine interaction in quantum dots we study the dynamics of a localized electron spin coupled to many nuclei. An important feature of the model is...
Andreev reflection eigenvalue density in mesoscopic conductors (2004)
Samuelsson, Peter, Belzig, Wolfgang, Nazarov, Yuli V.
The energy-dependent Andreev reflection eigenvalues determine the transport properties of normalsuperconducting systems. We evaluate the eigenvalue density to get insight into the formation of...
Full Counting Statistics of Spin Currents (2003)
Di Lorenzo, Antonio, Nazarov, Yuli V.
We discuss how to detect fluctuating spin currents and derive full counting statistics of electron spin transfers. It is interesting to consider several detectors in series that simultaneously...
Coherent oscillations of current due to nuclear spins (2003)
Erlingsson, Sigurdur I., Jouravlev, Oleg N., Nazarov, Yuli V.
We propose a mechanism for very slow coherent oscillations of current and nuclear spins in a quantum dot system, that may qualitatively explain some recent experimental observations. We concentrate...
Full counting statistics in electric circuits (2003)
Kindermann, Markus, Nazarov, Yuli V.
We review several ways of defining the statistics of charge that is transmitted through an electric circuit, the so-called "counting statistics". We first pursue two approaches that explain the...
Multiterminal counting statistics (2003)
Bagrets, Dmitri A., Nazarov, Yuli V.
The review is given of the calculational schemes that allows for easy evaluation of full current statistics (FCS) in multi-terminal mesoscopic systems. First, the scattering approach by Levitov {\it...
Phase sensitive shot noise in an Andreev interferometer (2003)
Reulet, Bertrand, Kozhevnikov, Alexay A., Prober, Daniel E., Belzig, Wolfgang, Nazarov, Yuli V.
We investigate nonequilibrium noise in a diffusive Andreev interferometer, in which currents emerging from two normal metal/superconductor (N-S) interfaces can interfere. We observe a modulation of...
Multi-parameter scaling of the Kondo effect in quantum dots with an even number of electrons (2002)
We address a recent theoretical discrepancy concerning the Kondo effect in quantum dots with an even number of electrons where spin-singlet and -triplet states are nearly degenerate. We show that the...
Erlingsson, Sigurdur I., Nazarov, Yuli V.
We consider the hyperfine-mediated transition rate between Zeeman split spin states of the lowest orbital level in a GaAs quantum dot. We separate the hyperfine Hamiltonian into a part which is...
Negative magnetoresistance in Andreev interferometers (2002)
Belzig, Wolfgang, Shaikhaidarov, Rais, Petrashov, Victor V., Nazarov, Yuli V.
We consider transport in a diffusive cross-shaped Andreev interferometer geometry, both theoretically and experimentally. A strong and unexpected modulation of the conductance with the...
Absolute spin-valve effect with superconducting proximity structures (2002)
Huertas-Hernando, Daniel, Nazarov, Yuli V., Belzig, Wolfgang
We investigate spin-dependent transport in hybrid superconductornormal-metalferromagnet structures under conditions of the proximity effect. We demonstrate the feasibility of the absolute...
Superconducting proximity effect in clean ferromagnetic layers (2002)
Zareyan, Malek, Belzig, Wolfgang, Nazarov, Yuli V.
We investigate the superconducting proximity effect in clean ferromagnetic layers with rough boundaries. The subgap density of states is formed by Andreev bound states at energies which depend on...
Generalized boundary conditions for the circuit theory of spin transport (2002)
Huertas-Hernando, Daniel, Nazarov, Yuli V., Belzig, Wolfgang
The circuit theory of mesoscopic transport provides a unified framework of spin-dependent or superconductivity-related phenomena. We extend this theory to hybrid systems of normal metals,...
Nucleus-mediated spin-flip transitions in GaAs quantum dots (2001)
Erlingsson, Sigurdur I., Nazarov, Yuli V., Fal'ko, Vladimir I.
Spin-flip rates in GaAs quantum dots can be quite slow, thus opening up the possibilities to manipulate spin states in the dots. We present here estimations of inelastic spin-flip rates mediated by...
Mean Field Theory of the Kondo Effect in Quantum Dots with an Even Number of Electrons (2001)
We investigate the enhancement of the Kondo effect in quantum dots with an even number of electrons, using a scaling method and a mean field theory. We evaluate the Kondo temperature $T_K$ as a...
Bauer, Gerrit E. W., Nazarov, Yuli V., Brataas, Arne
The recently developed semiclassical theory for magnetoelectronic circuits is applied to a transistor-like device consisting of a normal metal island and three magnetic terminals. The electric...
Full counting statistics of electron transfer between superconductors (2001)
Belzig, Wolfgang, Nazarov, Yuli V.
We present an extension of the Keldysh-Greens function method, which allows one to calculate the full distribution of transmitted particles through a mesoscopic superconductor. The method is...
Full current statistics in diffusive normal-superconductor structures (2001)
Belzig, Wolfgang, Nazarov, Yuli V.
We study the current statistics in normal diffusive conductors in contact with a superconductor. Using an extension of the Keldysh Greens function method we are able to find the full distribution...
Pi-o Transition in Superconductor-Ferromagnet-Superconductor Junctions (2001)
Chtchelkatchev, Nikolai M., Belzig, Wolfgang, Nazarov, Yuli V., Bruder, Christoph
Superconductorferromagnetsuperconductor (SFS) Josephson junctions are known to exhibit a transition between Pi and 0 states. In this letter, we find the Pi0 phase diagram of an SFS junction...
Oscillations of Andreev states in clean ferromagnetic films (2001)
Zareyan, Malek, Belzig, Wolfgang, Nazarov, Yuli V.
We investigate the influence of the exchange field on the Andreev bound states in a ferromagnetic (F) film backed on one side by a superconductor (S). Our model accounts for diffusive reflection at...
Semiclassical Concepts in Magnetoelectronics (2000)
Bauer, Gerrit E. W., Nazarov, Yuli V., Huertas-Hernando, Daniel, Brataas, Arne, Xia, Ke, Kelly, Paul J.
Semiclassical theories of electron and spin transport in metallic magnetic structures are reviewed with emphasis on the role of disorder and electronic band structures in the current perpendicular to...
Spin-flip transitions between Zeeman sublevels in semiconductor quantum dots (2000)
Khaetskii, Alexander V., Nazarov, Yuli V.
We have studied spin-flip transitions between Zeeman sublevels in GaAs electron quantum dots. Several different mechanisms which originate from spin-orbit coupling are shown to be responsible for...
Enhancement of Kondo effect in quantum dots with an even number of electrons (2000)
We investigate the Kondo effect in a quantum dot with almost degenerate spin-singlet and triplet states for an even number of electrons. We show that the Kondo temperature as a function of the energy...
Spin accumulation and Andreev reflection in a mesoscopic ferromagnetic wire (2000)
Belzig, Wolfgang, Brataas, Arne, Nazarov, Yuli V., Bauer, Gerrit E.W.
The electron transport though ferromagnetic-metalsuperconducting hybrid devices is considered in the nonequilibrium Greens function formalism in the quasiclassical approximation. Attention is...
Universalities of weak localization (1999)
We present here a novel approach to evaluation of the weak localization correction (WLC) to transport properties of a mesoscopic conductor. It is based on an extension of Keldysh technique and allows...
Spin relaxation in semiconductor quantum dots (1999)
Khaetskii, Alexander V., Nazarov, Yuli V.
We have studied the physical processes responsible for the spin -flip in GaAs quantum dots. We have calculated the rates for different mechanisms which are related to spin-orbit coupling and cause a...
Classical Quantization of Local Hall Conductivity in 2D Ballistic Systems (1999)
We study the linear Hall response of 2D ballistic system on inhomogeneous magnetic field. We establish that in classical limit the Hall conductivity response on local magnetic field is quantized in...
Novel Circuit Theory of Andreev Reflection (1998)
We review here a novel circuit theory of superconductivity. The existed circuit theory of Andreev reflection has been revised to account for decoherence between electrons and holes and twofold nature...
Coulomb drag in intermediate magnetic fields (1998)
Khaetskii, A. V., Nazarov, Yuli V.
We investigated theoretically the Coulomb drag effect in coupled 2D electron gases in a wide interval of magnetic field and temperature $ 1/\tau \ll \omega_c \ll E_F/\hbar$, $T \ll E_F$, $\tau$ being...
Skyrmions in disordered heterostructures} (1998)
Nederveen, A. J., Nazarov, Yuli V.
We have investigated the effect of weak disorder on the ground state of a two dimensional electron gas in the quantum Hall regime at filling factors slightly deviating from unity. The skyrmions and...
Coulomb Blockade without Tunnel Junctions (1998)
We find that tunnel junctions are not needed to provide single electron effects in a metallic island. Eventually the tunnel junction may be replaced by an arbitrary scatterer. It is important that...
Current drag in capacitevly coupled Luttinger constrictions (1997)
Nazarov, Yuli V., Averin, D. V.
We study the current drag in the system of two electrostatically coupled finite 1D electron channels. We present the perturbation theory results along with the results for two non-perturbative...
Quantum Phase Transition in Skyrmion Lattices (1997)
Nazarov, Yuli V., Khaetskii, A. V.
We investigate the ground state of 2D electron gas in Quantum Hall regime at the filling factor slightly deviating from unity, that can be viewed as a sparse lattice of skyrmions. We have found that...
Hierarchical Wigner Crystal at the Edge of Quantum Hall Bar (1995)
We show that quasiholes persist near the edge of incompressible Quantum Hall state forming a Wigner structure. The average density of quasiholes is fixed by electrostatics and decreases slowly with...
Fluctuations of Transmission Distribution in Disordered Conductors (1995)
We developed a microscopic approach to calculate the sample-to-sample fluctuations of transmission distribution in disordered conductors. This bridges between Green's function and random matrix...
Diffusive conductors as Andreev interferometers (1995)
Nazarov, Yuli V., Stoof, T. H.
We present a novel mechanism of phase-dependent electric transport in diffusive normal metal-superconductor structures. We provide a detailed theoretical and numerical analysis of recent unexplained...