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Title: Long-range order in the Bose-Einstein condensation of polaritons

Abstract

We adopt a kinetic theory of polariton nonequilibrium Bose-Einstein condensation to describe the formation of off-diagonal long-range order. The theory accounts properly for the dominant role of quantum fluctuations in the condensate. In realistic situations with optical excitation at high energy, it predicts a significant depletion of the condensate caused by long-wavelength fluctuations. As a consequence, the one-body density matrix in space displays a partially suppressed long-range order and a pronounced dependence on the finite size of the system.

Authors:
;  [1]
  1. Institute of Theoretical Physics, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)
Publication Date:
OSTI Identifier:
20957781
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. B, Condensed Matter and Materials Physics; Journal Volume: 75; Journal Issue: 11; Other Information: DOI: 10.1103/PhysRevB.75.115326; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BOSE-EINSTEIN CONDENSATION; CONDENSATES; DENSITY MATRIX; EXCITATION; FLUCTUATIONS; KINETIC EQUATIONS; POLARONS; WAVELENGTHS

Citation Formats

Sarchi, D., and Savona, V.. Long-range order in the Bose-Einstein condensation of polaritons. United States: N. p., 2007. Web. doi:10.1103/PHYSREVB.75.115326.
Sarchi, D., & Savona, V.. Long-range order in the Bose-Einstein condensation of polaritons. United States. doi:10.1103/PHYSREVB.75.115326.
Sarchi, D., and Savona, V.. Thu . "Long-range order in the Bose-Einstein condensation of polaritons". United States. doi:10.1103/PHYSREVB.75.115326.
@article{osti_20957781,
title = {Long-range order in the Bose-Einstein condensation of polaritons},
author = {Sarchi, D. and Savona, V.},
abstractNote = {We adopt a kinetic theory of polariton nonequilibrium Bose-Einstein condensation to describe the formation of off-diagonal long-range order. The theory accounts properly for the dominant role of quantum fluctuations in the condensate. In realistic situations with optical excitation at high energy, it predicts a significant depletion of the condensate caused by long-wavelength fluctuations. As a consequence, the one-body density matrix in space displays a partially suppressed long-range order and a pronounced dependence on the finite size of the system.},
doi = {10.1103/PHYSREVB.75.115326},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 11,
volume = 75,
place = {United States},
year = {Thu Mar 15 00:00:00 EDT 2007},
month = {Thu Mar 15 00:00:00 EDT 2007}
}