Spin-1/2 isotropic XY chain with Dzyaloshinskii-Moriya interaction in random lorentzian transverse field
O.V.Derzhko, T.M.Verkholyak (Institute for Condensed Matter Physics)
TL;DR
This paper provides exact thermodynamic results for a disordered spin-1/2 XY chain with Dzyaloshinskii-Moriya interaction in a Lorentzian transverse field, and proposes an approximate method for related models.
Contribution
It offers exact solutions for a disordered quantum spin chain and introduces an approximate approach for similar complex systems.
Findings
Exact thermodynamic properties for the disordered XY chain
Proposed an approximate method for the XXZ Heisenberg model with Dzyaloshinskii-Moriya interaction
Discussion of the applicability of approximate schemes in disordered spin systems
Abstract
The exact results for thermodynamical properties of one-dimensional spin-1/2 isotropic XY model with Dzyaloshinskii-Moriya interaction in random lorentzian transverse field are obtained. This permits to discuss some approximate methods of disordered spin systems theory. The approximate scheme of examining the thermodynamics of one-dimensional spin-1/2 XXZ Heisenberg model with Dzyaloshinskii-Moriya interaction in random lorentzian field is suggested.
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Taxonomy
TopicsTheoretical and Computational Physics · Opinion Dynamics and Social Influence · Quantum many-body systems