Boundary Time Crystals

被引：219

作者：

Iemini, F. ^{[1
]}

Russomanno, A. ^{[1
,2
,3
]}

Keeling, J. ^{[4
]}

Schiro, M. ^{[5
]}

Dalmonte, M. ^{[1
]}

Fazio, R. ^{[1
,2
,3
]}

机构：

[1] Abdus Salaam Int Ctr Theoret Phys, Str Costiera 11, I-34151 Trieste, Italy

[2] CNR, NEST, Scuola Normale Super, I-56126 Pisa, Italy

[3] CNR, Ist Nanosci, I-56126 Pisa, Italy

[4] Univ St Andrews, SUPA, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

[5] Univ Paris Saclay, Inst Phys Theor, CNRS, CEA, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 03期

基金：

英国工程与自然科学研究理事会; 新加坡国家研究基金会;

关键词：

COOPERATIVE FLUORESCENCE; SYSTEM; ORDER; SYMMETRY; OPERATOR; STATES; FIELD;

D O I：

10.1103/PhysRevLett.121.035301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work we introduce boundary time crystals. Here continuous time-translation symmetry breaking occurs only in a macroscopic fraction of a many-body quantum system. After introducing their definition and properties, we analyze in detail a solvable model where an accurate scaling analysis can be performed. The existence of the boundary time crystals is intimately connected to the emergence of a time-periodic steady state in the thermodynamic limit of a many-body open quantum system. We also discuss connections to quantum synchronization.

引用

页数：6

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