Abstract
We consider the condensate wave function of a rapidly rotating two-component Bose gas with an equal number of particles in each component. If the interactions between like and unlike species are very similar (as occurs for two hyperfine states of or ) we find that the two components contain identical rectangular vortex lattices, where the unit cell has an aspect ratio of , and one lattice is displaced to the center of the unit cell of the other. Our results are based on an exact evaluation of the vortex lattice energy in the large angular momentum (or quantum Hall) regime.
- Received 4 January 2002
DOI:https://doi.org/10.1103/PhysRevLett.88.180403
©2002 American Physical Society