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Dynamics of transverse correlations in the spin-1/2 isotropic XY chain with a correlated Lorentzian disorder

Oleg Derzhko·Taras Krokhmalskii
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Abstract

Using a numerical approach we examine the dynamics of $zz$ correlations for the spin-$1\over2$ isotropic XY chain with random Lorentzian intersite coupling and transverse field at sites that depends linearly on the neighbouring couplings. We study in detail the wave vector- and frequency-dependent $zz$ structure factor at different values of Hamiltonian parameters and temperature. We discuss the changes in the frequency profiles of the $zz$ dynamic structure factor caused by the introduced correlated disorder.

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Oleg Derzhko, Taras Krokhmalskii. 1998-11-02. Dynamics of transverse correlations in the spin-1/2 isotropic XY chain with a correlated Lorentzian disorder. https://arxiv.org/abs/cond-mat/9811021

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