Light-Induced Coherence in an Atom-Cavity System

被引：27

作者：

Georges, Christoph ^{[1
,2
]}

Cosme, Jayson G. ^{[1
,2
,3
]}

Mathey, Ludwig ^{[1
,2
,3
]}

Hemmerich, Andreas ^{[1
,2
,3
]}

机构：

[1] Univ Hamburg, Inst Laser Phys, D-22761 Hamburg, Germany

[2] Univ Hamburg, Zentrum Opt Quantentechnol, D-22761 Hamburg, Germany

[3] Hamburg Ctr Ultrafast Imaging, Luruper Chaussee 149, D-22761 Hamburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 22期

关键词：

PHASE-TRANSITION; GASES; FIELD;

D O I：

10.1103/PhysRevLett.121.220405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate a light-induced formation of coherence in a cold atomic gas system that utilizes the suppression of a competing density wave (DW) order. The condensed atoms are placed in an optical cavity and pumped by an external optical standing wave, which induces a long-range interaction mediated by photon scattering and a resulting DWorder above a critical pump strength. We show that the light-induced temporal modulation of the pump wave can suppress this DWorder and restore coherence. This establishes a foundational principle of dynamical control of competing orders analogous to a hypothesized mechanism for light-induced superconductivity in high-T-c cuprates.

引用

页数：5

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