Four-wave mixing excitations in a dissipative polariton quantum fluid
Four-wave mixing excitations in a dissipative polariton quantum fluid
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耗散极化子量子流体中的四波混合激发
DOI：
10.1103/physrevb.86.064508
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发表时间：
2012
影响因子：
3.7
通讯作者：
B. Deveaud
中科院分区：
文献类型：
--
作者：
V. Kohnle;Y. Léger;M. Wouters;M. Richard;M. Portella;B. Deveaud
极化激元量子流体的Bogoliubov变换最近在受驱动的微腔极化激元气体的四波混频响应中被揭示出来。在这项工作中，我们调查的修改，微腔极化激元的双重性质产生的这种特殊的半光半物质量子流体的激发。我们特别讨论了Bogoliubov字符的激发下极化激元超流体时，它与上极化激元共存。我们显示了独特的效果，如修改的Bogoliubov色散或减慢的四波混频动力学极化激元衰减和Bogoliubov变换之间的相互作用。
The Bogoliubov transformation of a polariton quantum fluid has recently been revealed in the four-wave mixing response of a driven microcavity polariton gas. In this work, we investigate the modifications that the dual nature of microcavity polaritons produce on the excitations of this particular half-light-half-matter quantum fluid. We discuss in particular the Bogoliubov character of the excitations of a lower polariton superfluid when it coexists with upper polaritons. We show unique effects resulting from the interplay between polariton decay and Bogoliubov transformation such as the modification of the Bogoliubov dispersion or the slowing down of the four-wave mixing dynamics.