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arXiv 1102.3387cond-mat.quant-gas
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一维无序势中的极化子凝聚

Polariton Condensation in a One-Dimensional Disordered Potential

F. Manni, K. G. Lagoudakis, B. Pietka, L. Fontanesi, M. Wouters, V. Savona, R. André, B. Deveaud-Plédran

摘要:

研究了一维无序谷中非平衡激子-极化激元凝聚体的相干性和密度调制。通过干涉测量,我们证明了一阶相干函数的调制,我们将其与无序诱导的调制的冷凝物密度,增加泵浦功率的增加。非单调的空间相干函数被发现是在无序的存在下,一维系统的强非平衡特性的结果。

英文摘要:

We study the coherence and density modulation of a non-equilibrium exciton-polariton condensate in a one-dimensional valley with disorder. By means of interferometric measurements we evidence a modulation of the first-order coherence function and we relate it to a disorder-induced modulation of the condensate density, that increases as the pump power is increased. The non-monotonous spatial coherence function is found to be the result of the strong non-equilibrium character of the one-dimensional system, in the presence of disorder.

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