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.
Original language | English |
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Article number | 085403 |
Journal | Journal of Physics Condensed Matter |
Volume | 29 |
Issue number | 8 |
DOIs | |
State | Published - 1 Mar 2017 |
Keywords
- condensate
- exciton-polariton
- vortex lattice