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  1. link.aps.org

    Figure 1 (a) Scheme of our setup: two spin-1/2 XXZ chains of sizes , governed by Hamiltonians , with different amplitudes of random disorder, connected at the interface by . (b) Sketch of the signatures of quantum avalanches obtained in Sec. 2 for the model from (a). First-order perturbative scheme predicts the growth of thermalized region as up to when the system starts to feel the ...
  2. We study the XXZ model with a random magnetic field in contact with a weakly disordered spin chain, acting as a finite thermal bath. We revise Fermi's golden rule description of the interaction between the thermal bath and the XXZ spin chain, contrasting it with a nonperturbative quantum avalanche scenario for the thermalization of the system. We employ two-point correlation functions to ...
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  4. Abstract. We study the XXZ model with a random magnetic field in contact with a weakly disordered spin chain, acting as a finite thermal bath. We revise Fermi's golden rule description of the interaction between the thermal bath and the XXZ spin chain, contrasting it with a nonperturbative quantum avalanche scenario for the thermalization of the system.
  5. journals.aps.org

    Catching thermal avalanches in the disordered XXZ model. Tomasz Szołdra, Piotr Sierant, Maciej Lewenstein, and Jakub Zakrzewski ... Bulk-edge correspondence for the nonlinear eigenvalues problem of the Haldane model. Shujie Cheng, Yonghua Jiang, and Gao Xianlong. Phys. Rev. B 109, 134201 (2024) - Published 1 April, 2024. EDITORS' SUGGESTION ...
  6. ui.adsabs.harvard.edu

    We study the XXZ model with a random magnetic field in contact with a weakly disordered spin chain, acting as a finite thermal bath. We revise Fermi's golden rule description of the interaction between the thermal bath and the XXZ spin chain, contrasting it with a nonperturbative quantum avalanche scenario for the thermalization of the system. We employ two-point correlation functions to ...
  7. We study the XXZ model with a random magnetic field in contact with a weakly disordered spin chain, acting as a finite thermal bath. We revise Fermi's golden rule description of the interaction between the thermal bath and the XXZ spin chain, contrasting it with a non-perturbative quantum avalanche scenario for the thermalization of the system.
  8. tszoldra.github.io

    Catching thermal avalanches in the disordered XXZ model. ... Phys. Rev. B, Apr 2024 . Paper arXiv Bib Supp. @article {PhysRevB.109.134202, title = {Catching thermal avalanches in the disordered XXZ model}, author = {Szo\l{}dra, Tomasz and ... {PhysRevB.107.054204, title = {Tracking locality in the time evolution of disordered systems}, author ...
  9. ar5iv.labs.arxiv.org

    The rest of this paper is structured as follows. In Sec. II, we outline a general picture of the possible scenarios for interaction of an ergodic bath with an MBL system.Subsequently, in Sec. III, we present the disordered spin-1/2 XXZ model and describe the correlation functions that allow us to investigate the propagation of avalanches, followed by numerically extracted signatures of ...

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