Partially suppressed long-range order in the Bose-Einstein condensation of polaritons
Materials Science
2015-06-25 v3 Mesoscale and Nanoscale Physics
Other Condensed Matter
Abstract
We adopt a kinetic theory of polariton non-equilibrium 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.
Keywords
Cite
@article{arxiv.cond-mat/0603106,
title = {Partially suppressed long-range order in the Bose-Einstein condensation of polaritons},
author = {Davide Sarchi and Vincenzo Savona},
journal= {arXiv preprint arXiv:cond-mat/0603106},
year = {2015}
}