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 |