Phase separation and collapse in Bose-Fermi mixtures with a Feshbach resonance
Phase separation and collapse in Bose-Fermi mixtures with a Feshbach resonance
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DOI：
10.1103/physrevb.78.134517
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发表时间：
2008-01
影响因子：
3.7
通讯作者：
F. Marchetti;C. Mathy;M. Parish;D. Huse
中科院分区：
文献类型：
--
作者：
F. Marchetti;C. Mathy;M. Parish;D. Huse
我们考虑一个混合物的单组分玻色子和费米子原子的种间相互作用，是不同的使用Feshbach共振。通过对描述窄和宽Feshbach共振的双通道模型进行平均场分析，我们发现在零温度下意外丰富的相图：玻色凝聚相和非玻色凝聚相形成各种相分离的状态，这些状态伴随着临界点和三临界点。我们讨论了实验观察到的玻色-费米混合物的Feshbach共振的吸引力的一侧崩溃，我们的结果的影响，我们对未来的实验玻色-费米混合物接近Feshbach共振的预测。
We consider a mixture of single-component bosonic and fermionic atoms with an interspecies interaction that is varied using a Feshbach resonance. By performing a mean-field analysis of a two-channel model, which describes both narrow and broad Feshbach resonances, we find an unexpectedly rich phase diagram at zero temperature: Bose-condensed and non-Bose-condensed phases form a variety of phase-separated states that are accompanied by both critical and tricritical points. We discuss the implications of our results for the experimentally observed collapse of Bose-Fermi mixtures on the attractive side of the Feshbach resonance, and we make predictions for future experiments on Bose-Fermi mixtures close to a Feshbach resonance.