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Title: Superfluidity of a nonequilibrium Bose-Einstein condensate of polaritons

Abstract

We study theoretically superfluidity in a driven-dissipative Bose gas out of thermal equilibrium, and discuss the relation with conventional superfluids. We show how the superfluid behavior is characterized by a dramatic increase in the lifetime of a quantized vortex and point out the influence of the spatial geometry of the condensate. We apply our study to a condensate of polaritons in a semiconductor microcavity, whose properties can be directly inferred from optical spectroscopy. We propose three different experimental schemes to measure the vorticity of the polariton condensate.

Authors:
;  [1]
  1. Insitute of Theoretical Physics, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)
Publication Date:
OSTI Identifier:
21366674
Resource Type:
Journal Article
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 81; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevB.81.054508; (c) 2010 The American Physical Society; Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BOSE-EINSTEIN CONDENSATION; BOSE-EINSTEIN GAS; CAVITIES; CONDENSATES; LIFETIME; POLARONS; SEMICONDUCTOR MATERIALS; SIMULATION; SPECTROSCOPY; SUPERFLUIDITY; THERMAL EQUILIBRIUM; VORTICES; EQUILIBRIUM; MATERIALS; QUASI PARTICLES

Citation Formats

Wouters, Michiel, and Savona, Vincenzo. Superfluidity of a nonequilibrium Bose-Einstein condensate of polaritons. United States: N. p., 2010. Web. doi:10.1103/PHYSREVB.81.054508.
Wouters, Michiel, & Savona, Vincenzo. Superfluidity of a nonequilibrium Bose-Einstein condensate of polaritons. United States. doi:10.1103/PHYSREVB.81.054508.
Wouters, Michiel, and Savona, Vincenzo. Mon . "Superfluidity of a nonequilibrium Bose-Einstein condensate of polaritons". United States. doi:10.1103/PHYSREVB.81.054508.
@article{osti_21366674,
title = {Superfluidity of a nonequilibrium Bose-Einstein condensate of polaritons},
author = {Wouters, Michiel and Savona, Vincenzo},
abstractNote = {We study theoretically superfluidity in a driven-dissipative Bose gas out of thermal equilibrium, and discuss the relation with conventional superfluids. We show how the superfluid behavior is characterized by a dramatic increase in the lifetime of a quantized vortex and point out the influence of the spatial geometry of the condensate. We apply our study to a condensate of polaritons in a semiconductor microcavity, whose properties can be directly inferred from optical spectroscopy. We propose three different experimental schemes to measure the vorticity of the polariton condensate.},
doi = {10.1103/PHYSREVB.81.054508},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
issn = {1098-0121},
number = 5,
volume = 81,
place = {United States},
year = {2010},
month = {2}
}