Bose-Einstein condensate of two-dimensional excitons in a ring: Necklace-like modulation of order parameter

S. -R. Eric Yang, Q-Han Park, J. Yeo

We have studied theoretically the Bose-Einstein condensation (BEC) of two-dimensional excitons in a ring with small random width variation. We derive a nonlinear Gross-Pitaevkii eq…