Chandrasekhar-Clogston limit and critical polarization in a Fermi-Bose superfluid mixture
Chandrasekhar-Clogston limit and critical polarization in a Fermi-Bose superfluid mixture
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DOI：
10.1103/physreva.90.043608
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发表时间：
2014-05
影响因子：
2.9
通讯作者：
T. Ozawa;A. Recati;M. Delehaye;F. Chevy;S. Stringari
中科院分区：
文献类型：
--
作者：
T. Ozawa;A. Recati;M. Delehaye;F. Chevy;S. Stringari
我们研究了零温下粒子数不平衡的强相互作用费米气体和玻色-爱因斯坦凝聚气体的混合物。在均匀情况下，我们发现由于玻色子的相互作用，费米超流不稳定性开始的临界极化增强。临界极化的预测也给出了在陷阱的情况下，特别关注的情况下，相等的费米-玻色和玻色-玻色耦合常数，费米子的密度变得平坦的中心的陷阱。这个制度可以实现实验使用Feshbach共振，是非常适合于调查出现的异国情调的配置，如自旋域或FFLO阶段的发生。
We study mixtures of a population-imbalanced strongly-interacting Fermi gas and of a Bose-Einstein condensed gas at zero temperature. In the homogeneous case, we find that the Chandrasekhar-Clogston critical polarization for the onset of instability of Fermi superfluidity is enhanced due to the interaction with the bosons. Predictions for the critical polarization are also given in the trapped case, with a special focus to the situation of equal Fermi-Bose and Bose-Bose coupling constants, where the density of fermions becomes flat in the center of the trap. This regime can be realized experimentally using Feshbach resonances and is well suited to investigate the emergence of exotic configurations, such as the occurrence of spin domains or the FFLO phase.