Quantum fluctuations and stability of vortex lattices in a nonresonantly pumped exciton-polariton condensate

文化大學機構典藏 CCUR > 理工學院 > 理學院 > 光電物理系 > 期刊論文 > Item 987654321/35980

Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/35980

Title:	Quantum fluctuations and stability of vortex lattices in a nonresonantly pumped exciton-polariton condensate
Authors:	Chen, TW (Chen, Ting-Wei) Jheng, SD (Jheng, Shih-Da) Jiang, TF (Jiang, T. F.) Cheng, SC (Cheng, Szu-Cheng)
Contributors:	物理系
Keywords:	vortex lattice condensate exciton-polariton
Date:	2017-03
Issue Date:	2017-04-19 15:56:18 (UTC+8)
Abstract:	The dynamics of an exciton-polariton condensate (EPC) subject to harmonic confinement can cause spontaneously formed vortices to arrange into a triangular vortex lattice. The stability of such a spontaneously formed vortex lattice is still unknown. We investigate the quantum fluctuations of vortex lattices in a rapidly rotating EPC with a rotation frequency close to the harmonic trap. In such a large condensate, we find that a vortex lattice with a triangular structure is stable, whereas one with a square structure becomes unstable. This result indicates that a driven-dissipative vortex array with strong quantum fluctuations can occur in an EPC.
Relation:	JOURNAL OF PHYSICS-CONDENSED MATTER 卷: 29 期: 8 文獻號碼: 085403
Appears in Collections:	[光電物理系] 期刊論文

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