Torsional oscillators and the entropy dilemma of putative supersolid He-4 (2008)
Graf, M. J., Balatsky, A. V., Nussinov, Z., Grigorenko, I., Trugman, S. A.
Solid He-4 is viewed as a nearly perfect Debye solid. Yet, recent calorimetry measurements by the PSU group (J. Low Temp. Phys. 138, 853 (2005) and Nature 449, 1025 (2007)) indicate that at low...
We derive a conserved spin current and show how to lowest order it reduces to the naive definition of spin density times velocity while to first order it is similar to, yet differs in sign from an...
Wan, M. B., Reichhardt, C. J. Olson, Nussinov, Z., Reichhardt, C.
We show that the recent experimental observation of the rectification of swimming bacteria in a system with an array of asymmetric barriers occurs due to the ballistic component of the bacteria...
On the origin of the decrease in the torsional oscillator period of solid He4 (2006)
Nussinov, Z., Balatsky, A. V., Graf, M. J., Trugman, S. A.
A decrease in the rotational period observed in torsional oscillator measurements was recently taken as a possible indication of a supersolid state of helium. We reexamine this interpretation and...
Observing the fluctuating stripes in high Tc superconductors (2006)
Cvetkovic, V., Nussinov, Z., Mukhin, S., Zaanen, J.
Resting on the gauge theory of topological quantum melting in 2+1 dimensions, we predict that a superconductor characterized by crystalline correlations on a length scale large compared to the...
Entropy of solid He4: the possible role of a dislocation glass (2006)
Balatsky, A. V., Graf, M. J., Nussinov, Z., Trugman, S. A.
Solid He4 is viewed as a nearly perfect Debye solid. Yet, recent calorimetry indicates that its low-temperature specific heat has both cubic and linear contributions. These features appear in the...
High-dimensional fractionalization and spinon deconfinement in pyrochlore antiferromagnets (2006)
Nussinov, Z., Batista, C. D., Normand, B., Trugman, S. A.
The ground states of Klein type spin models on the pyrochlore and checkerboard lattice are spanned by the set of singlet dimer coverings, and thus possess an extensive ground--state degeneracy. Among...
Heterogeneities and Topological Defects in Two-Dimensional Pinned Liquids (2006)
Reichhardt, C., Nussinov, Z., Pryadko, Leonid P., Reichhardt, C. J. Olson
We simulate a model of repulsively interacting colloids on a commensurate two-dimensional triangular pinning substrate where the amount of heterogeneous motion that appears at melting can be...
Tarjus, G., Kivelson, S. A., Nussinov, Z., Viot, P.
One of the most spectacular phenomena in physics in terms of dynamical range is the glass transition and the associated slowing down of flow and relaxation with decreasing temperature. That it occurs...
Topological kinematic constraints: quantum dislocations and the glide principle (2005)
Cvetkovic, V., Nussinov, Z., Zaanen, J.
Topological defects play an important role in physics of elastic media and liquid crystals. Their kinematics is determined by constraints of topological origin. An example is the glide motion of...
Park, Tuson, Nussinov, Z., Hazzard, K. R. A., Sidorov, V. A., Balatsky, A. V., Sarrao, J. L., ...
The low-frequency dielectric response of hole-doped insulators La_{2}Cu_{1-x}Li_{x}O_{4} and La_{2-x}Sr_{x}NiO_{4} shows a large dielectric constant \epsilon ^{'} at high temperature and a step-like...
Spin and Current Variations in Josephson Junctions (2004)
Shnirman, A., Nussinov, Z., Zhu, Jian-Xin, Balatsky, A. V., Makhlin, Yu.
We study the dynamics of a single spin embedded in the tunneling barrier between two superconductors. As a consequence of pair correlations in the superconducting state, the spin displays rich and...
Geometry and the Hidden Order of Luttinger Liquids: the Universality of Squeezed Space (2003)
Kruis, H. V., McCulloch, I. P., Nussinov, Z., Zaanen, J.
We present the case that Luttinger liquids are characterized by a form of hidden order which is similar, but distinct in some crucial regards, to the hidden order characterizing spin-1 Heisenberg...
Duality in 2+1D Quantum Elasticity: superconductivity and Quantum Nematic Order (2003)
Zaanen, J., Nussinov, Z., Mukhin, S. I.
The generalization of the Nelson-Halperin-Young theory of 2D melting to the dynamical 2+1D quantum case is presented. The bosonic quantum crystal dualizes in superfluids or superconductors exhibiting...
Powerlaw optical conductivity with a constant phase angle in high Tc superconductors (2003)
Molegraaf, H. J. A., Zaanen, J., Nussinov, Z., Carbone, F., Damascelli, A., ...
In certain materials with strong electron correlations a quantum phase transition (QPT) at zero temperature can occur, in the proximity of which a quantum critical state of matter has been...
Atomic scale elastic textures coupled to electrons in superconductors (2003)
Ahn, K. H., Zhu, Jian-Xin, Nussinov, Z., Lookman, T., Saxena, A., Balatsky, A. V., ...
We present an atomic scale theory of lattice distortions using strain related variables and their constraint equations. Our approach connects constrained atomic length scale variations to continuum...
Vibration Mode Induced Shapiro Steps and Backaction in Josephson Junctions (2003)
Zhu, Jian-Xin, Nussinov, Z., Balatsky, A. V.
A model of a superconducting tunnel junction coupled to a mechanical oscillator is studied at zero temperature in the case of linear coupling between the oscillator and tunneling electrons. It is...
Elasticity-Driven Nanoscale Electronic Structure in Superconductors (2003)
Zhu, Jian-Xin, Ahn, K. H., Nussinov, Z., Lookman, T., Balatsky, A. V., Bishop, A. R.
The effects of long-range anisotropic elastic deformations on electronic structure in superconductors are analyzed within the framework of the Bogoliubov-de Gennes equations. Cases of twin boundaries...
Noise spectroscopy of a single spin with spin polarized STM (2003)
Nussinov, Z., Crommie, M. F., Balatsky, A. V.
We show how the noise in a spin polarized STM tunneling current gives valuable spectroscopic information on the temporal susceptibility of a single magnetic atom residing on a non-magnetic surface.
Quantum critical behaviour in a high-T-c superconductor (2003)
Marel, D. Van Der, Molegraaf, H.J.A., Zaanen, J., Nussinov, Z., Carbone, F., Damascelli, A., ...
Quantum critical behaviour in a high-T-c superconductor (2003)
Marel, D. Van Der, Molegraaf, H.J.A., Zaanen, J., Nussinov, Z., Carbone, F., Damascelli, A., ...
Geometry and topological order in the non-relativistic Luttinger liquid (2002)
Kruis, H. V., McCulloch, I. P., Nussinov, Z., Zaanen, J.
We demonstrate that the notion of spin-charge separation as follows from the Tomonaga-Luttinger theory of relativistic fermions does not suffice to completely specify the Luttinger liquid state...
Stripe fractionalization I: the generation of Ising local symmetry (2002)
This is part one in a series of two papers dedicated to the notion that the destruction of the topological order associated with stripe phases is about the simplest theory controlled by local...
Stripe fractionalization II: the quantum spin nematic and the Abrikosov lattice (2002)
In part (I) of this two paper series on stripe fractionalization, we argued that in principle the `domain wall-ness' of the stripe phase could persist in the spin and charge disordered...
Emergent Z_2 gauge symmetry and spin-charge separation in one dimensional physics (2001)
Kruis, H. V., Nussinov, Z., Zaanen, J.
We demonstrate that in the scaling limit the phenomenon of spin-charge separation as encountered in Luttinger liquids defined on the lattice can be associated with the emergence of local Ising...
Here we examine O(n) systems with arbitrary two spin interactions (of unspecified range) within a general framework. We shall focus on translationally invariant interactions. In the this case, we...
Here we examine O(n) systems with arbitrary two spin interactions (of unspecified range) within a general framework. We shall focus on translationally invariant interactions. In the this case, we...
An Exact Solution to a Three Dimensional Ising Model and Dimensional Reductions (2001)
A high temperature expansion is employed to map some complex anisotropic nonhermitian three and four dimensional Ising models with algebraic long range interactions into a solvable two dimensional...
Varma, C. M., Nussinov, Z., Van Saarloos, W.
An introductory survey of the theoretical ideas and calculations and the experimental results which depart from Landau Fermi-liquids is presented. Common themes and possible routes to the...
The geometric order of stripes and Luttinger liquids (2001)
Zaanen, J., Osman, O. Y., Kruis, H. V., Nussinov, Z., Tworzydlo, J.
It is argued that the electron stripes as found in correlated oxides have to do with an unrecognized form of order. The manifestation of this order is the robust property that the charge stripes are...
The geometric order of stripes and Luttinger liquids (2001)
Zaanen, J., Osman, O.Y., Kruis, H.V., Nussinov, Z., Tworzydlo, J.
The geometric order of stripes and Luttinger liquids (2001)
Zaanen, J., Osman, O.Y., Kruis, H.V., Nussinov, Z., Tworzydlo, J.
Doped Antiferromagnets in High Dimension (1997)
Carlson, E. W., Kivelson, S. A., Nussinov, Z., Emery, V. J.
The ground-state properties of the t-J model on a d-dimensional hypercubic lattice are examined in the limit of large d. It is found that the undoped system is an ordered antiferromagnet, and that...
Avoided Critical Behavior in a Uniformly Frustrated System (1995)
Chayes, L., Emery, V. J., Kivelson, S. A., Nussinov, Z., Tarjus, G.
We study the effects of weak long-ranged antiferromagnetic interactions of strength $Q$ on a spin model with predominant short-ranged ferromagnetic interactions. In three dimensions, this model...