Surface gap solitons in exciton polariton condensates

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Title:	Surface gap solitons in exciton polariton condensates
Authors:	Chen, TW (Chen, Ting-Wei) Cheng, SC (Cheng, Szu-Cheng)
Contributors:	物理系
Keywords:	BOSE-EINSTEIN CONDENSATION WAVE-GUIDES
Date:	2018-09-17
Issue Date:	2019-01-16 15:04:25 (UTC+8)
Abstract:	A gap soliton is a solitonic state existing inside the band gap of an infinite-periodic exciton-polariton condensate (EPC). The combination of surface states and gap solitons forms the so-called surface gap solitons (SGSs). We analyze the existence of SGSs near the interface between uniform and semi-infinite periodic EPCs. We find that SGSs exist only when the system is excited by a pump with a smaller width. As the width of the pump increases, SGSs become unstable.
Appears in Collections:	[Department of Physics ] journal articles

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