Quantum phases of vortices in rotating Bose-Einstein condensates

被引:401
作者
Cooper, NR
Wilkin, NK
Gunn, JMF
机构
[1] Univ Cambridge, Cavendish Lab, Condensed Matter Theory Grp, Cambridge CB3 0HE, England
[2] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England
关键词
D O I
10.1103/PhysRevLett.87.120405
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We investigate the ground states of weakly, interacting bosons in a rotating trap as a function of the number of bosons, N, and the average number of vortices, N-v. We identify the filling fraction nu = N/N-v as the parameter controlling the nature of these states. We present results indicating that, as a function of nu, there is a zero temperature phase transition between a triangular vortex lattice phase, and strongly correlated vortex liquid phases. The vortex liquid phases appear to be the Read-Rezayi parafermion states.
引用
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页码:120405/1 / 120405/4
页数:4
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