Generalized Dicke Nonequilibrium Dynamics in Trapped Ions

被引：48

作者：

Genway, Sam ^{[1
]}

Li, Weibin ^{[1
]}

Ates, Cenap ^{[1
]}

Lanyon, Benjamin P. ^{[2
,3
]}

Lesanovsky, Igor ^{[1
]}

机构：

[1] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[2] Austrian Acad Sci, Inst Quantenopt & Quanteninformat, A-6020 Innsbruck, Austria

[3] Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 02期

基金：

英国工程与自然科学研究理事会; 欧洲研究理事会;

关键词：

QUANTUM PHASE-TRANSITION; SIMULATION; MODEL;

D O I：

10.1103/PhysRevLett.112.023603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We explore trapped ions as a setting to investigate nonequilibrium phases in a generalized Dicke model of dissipative spins coupled to phonon modes. We find a rich dynamical phase diagram including super-radiantlike regimes, dynamical phase coexistence, and phonon-lasing behavior. A particular advantage of trapped ions is that these phases and transitions among them can be probed in situ through fluorescence. We demonstrate that the main physical insights are captured by a minimal model and consider an experimental realization with Ca+ ions trapped in a linear Paul trap with a dressing scheme to create effective two-level systems with a tunable dissipation rate.

引用

页数：5

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