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Condensation and lasing of microcavity polaritons: comparison between two models

机译：微腔极化子的凝结和发射：两种模型之间的比较

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Condensation of microcavity polaritons and the substantial influence of pair-breaking disorder and decoherence leading to a laser regime has been recently considered using two different models: a model for direct two band excitons in a disordered quantum well coupled to light and a model, where the cavity mode couples instead to a medium of localised excitons, represented by two-level oscillators in the presence of dephasing processes. Even if complementary from the point of view of assumptions, the models share most of the main conclusions and show similar phase diagrams. The issue whether excitons are propagating or localised seems secondary for the polariton condensation and the way in which pair-breaking disorder and decoherence processes influence the condensation and drive the microcavity into a lasing regime is, within the approximations used in each model, generic. The reasons for the similarities between the two physical situations are analysed and explained. (c) 2004 Elsevier Ltd. All rights reserved.
机译：最近已经考虑使用两种不同的模型来考虑微腔极化子的凝聚以及导致激光状态的成对断裂无序和退相干的实质性影响：在与光耦合的无序量子中直接两个能带激子的模型和一个模型，其中腔模耦合到局部激子的介质上，在存在相移过程的情况下，该激子以两级振荡器为代表。即使从假设的观点来看是互补的，这些模型也具有大多数主要结论并显示相似的相图。对于每个极化子凝聚，激子是传播还是局部的问题似乎是次要的，在每个模型中使用的近似值内，成对断裂无序和退相干过程影响凝聚并使微腔进入激射状态的方式是通用的。分析并解释了两种物理情况之间相似的原因。 （c）2004 Elsevier Ltd.保留所有权利。

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