Disorder-induced dynamical Griffiths singularities after certain quantum quenches
| Autor: | José A. Hoyos, R. F. P. Costa, J. C. Xavier |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Condensed Matter - Strongly Correlated Electrons
Statistical Mechanics (cond-mat.stat-mech) Strongly Correlated Electrons (cond-mat.str-el) FOS: Physical sciences Disordered Systems and Neural Networks (cond-mat.dis-nn) Condensed Matter - Disordered Systems and Neural Networks SISTEMAS DESORDENADOS Condensed Matter - Statistical Mechanics |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | We demonstrate that in a class of disordered quantum systems the dynamical partition function is not an analytical function in a time window after certain quantum quenches. We related this behavior to rare and large regions with atypical inhomogeneity configurations. We also quantify the strength of the associated singularities and their signatures in experiments and numerical studies. (v1): 6+6 pages, 4+2 figures, numerics on the dimerized XX spin-1/2 chain; (v2): 5+10 pages, 3+4 figures, numerics on the transverse-field Ising chain, published version |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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