Dipolar fermions in a two-dimensional lattice at nonzero temperature
Dipolar fermions in a two-dimensional lattice at nonzero temperature
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DOI:
10.1103/physreva.86.033623
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发表时间:
2012-06
影响因子:
2.9
通讯作者:
Anne-Louise Gadsbolle;G. Bruun
中科院分区:
文献类型:
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作者:
Anne-Louise Gadsbolle;G. Bruun
We examine density ordered and superfluid phases of fermionic dipoles in a two-dimensional square lattice at non-zero temperature. The critical temperature of the density ordered phases is determined and is shown to be proportional to the coupling strength for strong coupling. We calculate the superfluid fraction and demonstrate that the Berezinskii-Kosterlitz-Thouless transition temperature of the superfluid phase is proportional to the hopping matrix element in the strong coupling limit. We finally analyze the effects of an external harmonic trapping potential.