Phase fluctuations in anisotropic Bose-Einstein condensates: From cigars to rings
Phase fluctuations in anisotropic Bose-Einstein condensates: From cigars to rings
We study the phase-fluctuating condensate regime of ultracold atoms trapped in a ring-shaped trap geometry, which has been realized in recent experiments. We first consider a simplified box geometry, in which we identify the conditions to create a state that is dominated by thermal phase fluctuations, and then explore the …