Delayed thermalization in the mass-deformed Sachdev-Ye-Kitaev model

被引：16

作者：

Nandy, Dillip Kumar ^{[1
]}

Cadez, Tilen ^{[1
]}

Dietz, Barbara ^{[1
]}

Andreanov, Alexei ^{[1
,2
]}

Rosa, Dario ^{[1
,2
]}

机构：

[1] Inst Basic Sci IBS, Ctr Theoret Phys Complex Syst, Daejeon 34126, South Korea

[2] Korea Univ Sci & Technol UST, Basic Sci Program, Daejeon 34113, South Korea

来源：

PHYSICAL REVIEW B | 2022年 / 106卷 / 24期

关键词：

STATISTICAL-MECHANICS; QUANTUM; LOCALIZATION; SYSTEM; CHAOS;

D O I：

10.1103/PhysRevB.106.245147

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the thermalizing properties of the mass-deformed Sachdev-Ye-Kitaev model, in a regime of param-eters where the eigenstates are ergodically extended over just portions of the full Fock space, as an all-to-all toy model of many-body localization (MBL). Our numerical results strongly support the hypothesis that, although considerably delayed, thermalization is still present in this regime. Our results add to recent studies indicating that MBL should be interpreted as a strict Fock-space localization.

引用

页数：10

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