標題: Quantum fluctuations and stability of vortex lattices in a nonresonantly pumped exciton-polariton condensate
作者: Chen, Ting-Wei
Jheng, Shih-Da
Jiang, T. F.
Cheng, Szu-Cheng
物理研究所
Institute of Physics
關鍵字: vortex lattice;condensate;exciton-polariton
公開日期: 1-三月-2017
摘要: 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.
URI: http://dx.doi.org/10.1088/1361-648X/aa51b4
http://hdl.handle.net/11536/133150
ISSN: 0953-8984
DOI: 10.1088/1361-648X/aa51b4
期刊: JOURNAL OF PHYSICS-CONDENSED MATTER
Volume: 29
Issue: 8
顯示於類別:期刊論文