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Wave Functions Statistics at Quantum Hall Critical Point
A. M. Tsvelik
I elaborate on the earlier suggestion that the model describing the plateaux transition in Integer Quantum Hall effect scales to a particular point on the line of critical points o…
Superconductivity and Charge Density Wave in a Quasi-One-Dimensional Spin Gap System
Sam T. Carr, Alexei M. Tsvelik
We consider a model of spin-gapped chains weakly coupled by Josephson and Coulomb interactions. Combining such non-perturbative methods as bosonization and Bethe ansatz to treat th…
Weakly coupled one-dimensional Mott insulators
Fabian H. L. Essler, Alexei M. Tsvelik
We consider a model of one-dimensional Mott insulators coupled by a weak interchain tunnelling . We first determine the single-particle Green's function of a single chain…
Spectral function of a quarter-filled one-dimensional CDW insulator
Fabian H. L. Essler, Alexei M. Tsvelik
We consider a one-dimensional charge density wave (CDW) insulator formed by Umklapp processes in a quarter-filled band. The spectrum of the model consists of gapless, uncharged exc…
Finite-temperature dynamical magnetic susceptibility of quasi-one-dimensional frustrated spin-1/2 Heisenberg antiferromagnets
Marc Bocquet, Fabian H. L. Essler, Alexei M. Tsvelik +1
We study the dynamical response of frustrated, quasi-one-dimensional spin-1/2 Heisenberg antiferromagnets at finite temperatures. We allow for the presence of a Dzyaloshinskii-Mori…