Fig. 1: Experimental coherence properties of the polariton condensate. (a) First-order coherence function g(1)(τ) above threshold. (b) Dependence of the coherence time on pumping intensity. (c,d) Experimental intensity-intensity correlation function g(2)(τ) below (c) and a factor of two above (d) threshold. Correcting for experimental factors gives g(2)(0) = 1.1 for the emission above threshold. Reproduced from ref. [4].
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