Spontaneous self-ordered states of vortex-antivortex pairs in a polariton condensate

被引：38

作者：

Manni, F. ^{[1
]}

Liew, T. C. H. ^{[2
]}

Lagoudakis, K. G. ^{[3
]}

Ouellet-Plamondon, C. ^{[1
]}

Andre, R. ^{[4
]}

Savona, V. ^{[5
]}

Deveaud, B. ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland

[2] Nanyang Technol Univ, Div Phys & Appl Phys, Singapore 63737, Singapore

[3] Stanford Univ, EL Ginzton Lab, Stanford, CA 93405 USA

[4] CNRS, Inst Neel, F-38042 Grenoble, France

[5] Ecole Polytech Fed Lausanne, Inst Theoret Phys, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 20期

基金：

瑞士国家科学基金会; 欧洲研究理事会;

关键词：

QUANTIZED VORTICES; SUPERCONDUCTORS; DYNAMICS; SOLITONS; LATTICES;

D O I：

10.1103/PhysRevB.88.201303

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polariton condensates have proved to be model systems to investigate topological defects, as they allow for direct and nondestructive imaging of the condensate complex order parameter. The fundamental topological excitations of such systems are quantized vortices. In specific configurations, further ordering can bring the formation of vortex lattices. In this work we demonstrate the spontaneous formation of ordered vortical states, consisting in geometrically self-arranged vortex-antivortex pairs. A mean-field generalized Gross-Pitaevskii model reproduces and supports the physics of the observed phenomenology.

引用

页数：5

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