614 citations · 1.1k across the 14 of their papers we have counts for
14 papers
Incipient order in the t-J model at high temperatures
Leonid P. Pryadko, Steven A. Kivelson, Oron Zachar
We analyze the high-temperature behavior of the susceptibilities towards a number of possible ordered states in the t-J-V model using the high-temperature series expansion. From al…
New Model and Numerical Test of a High Temperature Pairing Mechanism in Stripes
Oron Zachar
We introduce a new model and mechanism of high temperature pairing in stripes. We propose a way to unambiguously test it by numerical simulations. For example, the implementation o…
Numerical Test of the Energy Scale of Columnar Dimerization in High-T_{c} Cuperate Superconductors
Oron Zachar
Spontaneous bond dimerization (BD) was cojectured to be central to the physics of the cuperate superconductors. Based on ladder models and numerical simulations, we examine the qua…
Dimensional cross-over and charge order in half-doped Manganites and Cobaltites
Oron Zachar, Igor Zaliznyak
We introduce a general model for understanding the effect of quenched disorder on charge ordering in half-doped Manganese- and Cobalt-Oxides with different crystal structures. Curr…
Staggered liquid phases of the 1D Kondo-Heisenberg lattice model
Oron Zachar
We introduce a new family of one dimensional liquids, which we label as ''Staggered-Liquids'', in the phase diagram of the 1D Kondo-Heisenberg model. It encompasses three distinct…
Stripes: Why hole rich lines are antiphase domain walls?
Oron Zachar
For stripes of hole rich lines in doped antiferromagnets, we investigate the competition between anti-phase and in-phase domain wall ground state configurations. We argue that a ph…
Stripes Disorder and Correlation lengths in doped antiferromagnets
Oron Zachar
For stripes in doped antiferromagnets, we find that the ratio of spin and charge correlation lenghts, , provide a sharp criterion for determining the dominant form of…
One-dimensional electron gas interacting with a Heisenberg spin-1/2 chain
Oron Zachar, Alexei M. Tsvelik
We analyse a model of a one-dimensional electron gas interacting with an antiferromagnetic Heisenberg spin-1/2 chain via the spin exchange interactions. Using a solution at a speci…
Effect of magnetic field on over-doped HTc superconductors: Conflicting predictions of various HTc theories
Oron Zachar
Following the recent NMR experiments by Gorny et al., we discuss the effect of a magnetic field on the superconducting T_c and the spin pseudo-gap T^*. As a testable prediction, we…
Negative Josephson coupling in the Kondo strong coupling limit
Oron Zachar
We Show that pair hopping through a Kondo singlet give rise to a negative Josephson coupling. Thus, our calculation supports the existance of staggered pair correlations in the str…
Classification and Stability of Phases of the Multicomponent One-Dimensional Electron Gas
V. J. Emery, S. A. Kivelson, O. Zachar
The classification of the ground-state phases of complex one-dimensional electronic systems is considered in the context of a fixed-point strategy. Examples are multichain Hubbard…
Landau Theory of Stripe Phases in Cuprates and Nickelates
Oron Zachar, S. A. Kivelson, V. J. Emery
We consider a Landau theory of coupled charge and spin-density wave order parameters as a simple model for the ordering that has been observed experimentally in the La_2NiO_4 and L…
Spin-Gap Proximity Effect Mechanism of High Temperature Superconductivity
V. J. Emery, S. A. Kivelson, O. Zachar
When holes are doped into an antiferromagnetic insulator they form a slowly fluctuating array of ``topological defects'' (metallic stripes) in which the motion of the holes exhibit…
Exact Results for 1D Kondo Lattice from Bosonization
Oron Zachar, S. A. Kivelson, V. J. Emery
We find a solvable limit to the problem of the 1D electron gas interacting with a lattice of Kondo scattering centers. In this limit, we present exact results for the problems of i…