微腔极化激元稳态中的安德森局域化

Anderson localisation in steady states of microcavity polaritons.

作者信息

Sturges Thomas J, Anderson Mitchell D, Buraczewski Adam, Navadeh-Toupchi Morteza, Adiyatullin Albert F, Jabeen Fauzia, Oberli Daniel Y, Portella-Oberli Marcia T, Stobińska Magdalena

机构信息

Institute of Theoretical Physics, University of Warsaw, ul. Pasteura 5, 02-093, Warsaw, Poland.

Institute of Physics, School of Basic Sciences, Ecole Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland.

出版信息

Sci Rep. 2019 Dec 18;9(1):19396. doi: 10.1038/s41598-019-55673-y.

DOI:10.1038/s41598-019-55673-y

PMID:31852925

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6920441/

Abstract

We present an experimental signature of the Anderson localisation of microcavity polaritons, and provide a systematic study of the dependence on disorder strength. We reveal a controllable degree of localisation, as characterised by the inverse-participation ratio, by tuning the positional disorder of arrays of interacting mesas. This constitutes the realisation of disorder-induced localisation in a driven-dissipative system. In addition to being an ideal candidate for investigating localisation in this regime, microcavity polaritons hold promise for low-power, ultra-small devices and their localisation could be used as a resource in quantum memory and quantum information processing.

摘要

我们展示了微腔极化激元安德森局域化的实验特征，并对其与无序强度的依赖关系进行了系统研究。通过调整相互作用台面阵列的位置无序度，我们揭示了以逆参与率为特征的可控局域化程度。这构成了在驱动耗散系统中实现无序诱导局域化。除了是研究该体系中局域化的理想候选者外，微腔极化激元还有望用于低功耗、超小型器件，并且它们的局域化可作为量子存储和量子信息处理的一种资源。