Coherence of the exciton condensate luminescence

B. Laikhtman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

A new experiment to detect Bose-Einstein condensation of excitons is suggested. The experiment is a photon-counting measurement of the exciton luminescence with two detectors. As a result, the number of photons N(t) and the second-order coherence g(2)(t) emitted during the time interval t can be obtained. These quantities contain contributions from both the normal component and the condensate. It is shown in the paper that the number of photons emitted by a condensate, N(2)(t), can be found from the expression [N(2)(t)]2 = 2[N(t)]2 - g(2)(t). The integration of N(2)(t) over the spectrum gives the value of the order parameter.

Original languageEnglish
Pages (from-to)53-58
Number of pages6
JournalEurophysics Letters
Volume43
Issue number1
DOIs
StatePublished - 1 Jul 1998

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