標題: Stability and excitations of spontaneous vortices in polariton condensates
作者: Chen, Ting-Wei
Chiang, Yu-Ling
Cheng, Szu-Cheng
Hsieh, Wen-Feng
光電工程學系
Department of Photonics
關鍵字: Polariton condensates;Quantized vortices
公開日期: 1-Jul-2013
摘要: We study the dynamics of spontaneously formed vortices in incoherently pumped homogeneous microcavity polariton condensates (MPC). We find vortices are stable and appear spontaneously without stirring or rotating MPCs by the numerical modeling using complex Gross-Pitaevskii equation. The center of the vortex core contains some background of reservoir polaritons and the visibility increases with the pump strength. The vortex radius is inversely proportional to the square root of the condensate density or the pump strength. Finally, vortices formed by low pumping power exhibit short lifetime because of the existence of excitations without costing energy. (c) 2013 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.ssc.2013.04.018
http://hdl.handle.net/11536/22241
ISSN: 0038-1098
DOI: 10.1016/j.ssc.2013.04.018
期刊: SOLID STATE COMMUNICATIONS
Volume: 165
Issue: 
起始頁: 6
結束頁: 10
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