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arXiv 1004.2216cond-mat.quant-gas
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激子-极化子约瑟夫森结中的相干振荡

Coherent Oscillations in an Exciton-Polariton Josephson Junction

K. G. Lagoudakis, B. Pietka, M. Wouters, R. André, B. Deveaud-Plédran

摘要:

本文报道了在微腔极化激元玻色子约瑟夫森结中观察到的自发相干振荡。激子极化激元的凝聚发生在无序环境中的非相干激发下,其中双势阱往往出现在无序景观。相干振荡在激发功率远高于凝聚阈值时开始。时间分辨布居和相位动力学揭示了与AC约瑟夫森效应的类比。我们引入了一个理论双模模型来描述所观察到的效应,这使我们能够解释如何不同的实现脉冲实验具有相似的相位关系。

英文摘要:

We report on the observation of spontaneous coherent oscillations in a microcavity polariton bosonic Josephson junction. The condensation of exciton polaritons takes place under incoherent excitation in a disordered environment, where double potential wells tend to appear in the disordered landscape. Coherent oscillations set on at an excitation power well above the condensation threshold. The time resolved population and phase dynamics reveal the analogy with the AC Josephson effect. We have introduced a theoretical two-mode model to describe the observed effects, which allows us to explain how the different realizations of the pulsed experiment have a similar phase relation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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