Ultracold Fermi Gases with Resonant Dipole-Dipole Interaction

被引：17

作者：

Shi, T. ^{[1
,3
]}

Zou, S. -H. ^{[1
]}

Hu, H. ^{[2
]}

Sun, C. -P. ^{[1
,4
]}

Yi, S. ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Theoret Phys, Inst Theoret Phys, Beijing 100190, Peoples R China

[2] Swinburne Univ Technol, ARC Ctr Excellence Quantum Atom Opt, Ctr Atom Opt & Ultrafast Spect, Melbourne, Vic 3122, Australia

[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

[4] Being Computat Sci Res Ctr, Beijing 100084, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 04期

关键词：

SUPERCONDUCTORS; TEMPERATURE; STATES; WAVE;

D O I：

10.1103/PhysRevLett.110.045301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The superfluid phases in resonant dipolar Fermi gases are investigated by the standard mean-field theory. In contrast to the crossover from Bose-Einstein condensation (BEC) to Bardeen-Cooper-Schrieffer superfluid in Fermi gases with isotropic interactions, resonant dipolar interaction leads to two completely different BEC phases of the tight-binding Fermi molecules on both sides of the resonance, which are characterized by two order parameters with distinct internal symmetries. We point out that, near the resonances, the two competitive phases can coexist, and an emergent relative phase between the two order parameters spontaneously breaks time-reversal symmetry, which could be observed in momentum resolved rf spectroscopy. DOI: 10.1103/PhysRevLett.110.045301

引用

页数：5

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