Nonequilibrium Quantum Phase Transitions in the Dicke Model

被引：161

作者：

Bastidas, V. M. ^{[1
]}

Emary, C. ^{[1
]}

Regler, B. ^{[1
]}

Brandes, T. ^{[1
]}

机构：

[1] Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 108卷 / 04期

关键词：

DYNAMICS;

D O I：

10.1103/PhysRevLett.108.043003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We establish a set of nonequilibrium quantum phase transitions in the Dicke model by considering a monochromatic nonadiabatic modulation of the atom-field coupling. For weak driving the system exhibits a set of sidebands which allow the circumvention of the no-go theorem which otherwise forbids the occurrence of superradiant phase transitions. At strong driving we show that the system exhibits a rich multistable structure and exhibits both first- and second-order nonequilibrium quantum phase transitions.

引用

页数：5

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