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 language | English |
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Pages (from-to) | 53-58 |
Number of pages | 6 |
Journal | Europhysics Letters |
Volume | 43 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jul 1998 |