|標題:||Quantum fluctuations and stability of vortex lattices in a nonresonantly pumped exciton-polariton condensate|
Jiang, T. F.
Institute of Physics
|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.|
|期刊:||JOURNAL OF PHYSICS-CONDENSED MATTER|
|Appears in Collections:||Articles|