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arXiv 1409.8282cond-mat.quant-gascond-mat.mes-hallquant-ph
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园艺品种系统中的拓扑极化子和激子

Topological Polaritons and Excitons in Garden Variety Systems

Charles-Edouard Bardyn, Torsten Karzig, Gil Refael, Timothy C. H. Liew

摘要:

拓扑极化激元(又名topolaritons)提出了一个新的前沿固态系统的拓扑行为。它们结合了光和物质,这使得可以以各种方式探测和操纵它们。由于它们的激子成分,它们也可以被制成强相互作用。然而,到目前为止,实现这些目标被认为是相当具有挑战性的。在这里,我们提出了一个方案,允许实现topolaritons在花园品种锌量子阱。我们的建议需要一个适度的磁场和一个可以实现的潜在景观,例如,通过表面声波或图案化。我们确定间接激子在双量子阱作为一个特别有吸引力的替代拓扑状态激子为基础的系统。间接激子是鲁棒的和长寿命的(寿命可达毫秒),因此,提供了一个灵活的平台,实现,探测和利用拓扑耦合轻物质状态。

英文摘要:

Topological polaritons (aka topolaritons) present a new frontier for topological behavior in solid-state systems. They combine light and matter, which allows to probe and manipulate them in a variety of ways. They can also be made strongly interacting, due to their excitonic component. So far, however, their realization was deemed rather challenging. Here we present a scheme which allows to realize topolaritons in garden variety zinc-blende quantum wells. Our proposal requires a moderate magnetic field and a potential landscape which can be implemented, e.g., via surface acoustic waves or patterning. We identify indirect excitons in double quantum wells as a particularly appealing alternative for topological states in exciton-based systems. Indirect excitons are robust and long lived (with lifetimes up to milliseconds), and, therefore, provide a flexible platform for the realization, probing, and utilization of topological coupled light-matter states.

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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