Dicke Transition in Open Many-Body Systems Determined by Fluctuation Effects

被引：13

作者：

Bezvershenko, Alla, V ^{[1
]}

Halati, Catalin-Mihai ^{[2
]}

Sheikhan, Ameneh ^{[2
]}

Kollath, Corinna ^{[2
]}

Rosch, Achim ^{[1
]}

机构：

[1] Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany

[2] Univ Bonn, Phys Inst, Nussallee 12, D-53115 Bonn, Germany

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 127卷 / 17期

基金：

欧洲研究理事会;

关键词：

PHASE-TRANSITION; ATOMS;

D O I：

10.1103/PhysRevLett.127.173606

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We develop an approach to describe the Dicke transition of interacting many-particle systems strongly coupled to the light of a lossy cavity. A mean-field approach is combined with a perturbative treatment of fluctuations beyond mean field, which becomes exact in the thermodynamic limit. These fluctuations completely change the nature of the steady state, determine the thermal character of the transition, and lead to universal properties of the emerging self-organized states. We validate our results by comparing them with time-dependent matrix-product-state calculations.

引用

页数：6

共 39 条

[1] Self-organization of atoms in a cavity field:: Threshold, bistability, and scaling laws -: art. no. 053417 [J].

Asbóth, JK ;

Domokos, P ;

Ritsch, H ;

Vukics, A .

PHYSICAL REVIEW A, 2005, 72 (05)

[2] Dicke quantum phase transition with a superfluid gas in an optical cavity [J].

Baumann, Kristian ;

Guerlin, Christine ;

Brennecke, Ferdinand ;

Esslinger, Tilman .

NATURE, 2010, 464 (7293) :1301-U1

[3] From quantum chaos and eigenstate thermalization to statistical mechanics and thermodynamics [J].

D'Alessio, Luca ;

Kafri, Yariv ;

Polkovnikov, Anatoli ;

Rigol, Marcos .

ADVANCES IN PHYSICS, 2016, 65 (03) :239-362

[4] Time-dependent density-matrix renormalization-group using adaptive effective Hilbert spaces -: art. no. P04005 [J].

Daley, AJ ;

Kollath, C ;

Schollwöck, U ;

Vidal, G .

JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, 2004,

[5] Atom-only descriptions of the driven-dissipative Dicke model [J].

Damanet, Francois ;

Daley, Andrew J. ;

Keeling, Jonathan .

PHYSICAL REVIEW A, 2019, 99 (03)

[6] COHERENCE IN SPONTANEOUS RADIATION PROCESSES [J].

DICKE, RH .

PHYSICAL REVIEW, 1954, 93 (01) :99-110

[7] Ultrastrong coupling regimes of light-matter interaction [J].

Forn-Diaz, P. ;

Lamata, L. ;

Rico, E. ;

Kono, J. ;

Solano, E. .

REVIEWS OF MODERN PHYSICS, 2019, 91 (02)

[8] Interacting spins in a cavity: Finite-size effects and symmetry-breaking dynamics [J].

Gammelmark, Soren ;

Molmer, Klaus .

PHYSICAL REVIEW A, 2012, 85 (04)

[9] Dissipation-induced hard-core boson gas in an optical lattice [J].

Garcia-Ripoll, J. J. ;

Duerr, S. ;

Syassen, N. ;

Bauer, D. M. ;

Lettner, M. ;

Rempe, G. ;

Cirac, J. I. .

NEW JOURNAL OF PHYSICS, 2009, 11

[10]

Halati C.-M., 2021, External control of many-body quantum systems

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