论文标题
Bose-Fermi超流体的混合物中的量子液滴
Quantum droplet in a mixture of Bose-Fermi superfluids
论文作者
论文摘要
我们研究了单型玻色网凝结物（BEC）的混合物中量子液滴的形成，以及在宽阔的Feshbach共振中的两个物种的费米超氟。通过排斥的玻色孔 - 玻色子和有吸引力的玻色剂 - 弗森相互作用，我们表明量子液滴可以通过在较弱的Boson-fermion相互作用下，通过Bardeen-Cooper-Schieffer（BCS）的Bardeen-Cooper-Schieffer（BCS）侧中有吸引力的Fermion-Fermion相互作用来稳定。我们将相对于玻色孔和玻色剂 - 弗里术相互作用绘制出稳定液滴的相图，并讨论不同类型的量子波动在BCS-BEC交叉的相关区域中的作用。我们的工作揭示了费米昂配对对Bose-Fermi混合物中量子液滴形成的影响，并为将来的实验提供了有用的指南。
We study the formation of quantum droplets in the mixture of a single-component Bose-Einstein condensate (BEC), and a two-species Fermi superfluid across a wide Feshbach resonance. With repulsive boson-boson and attractive boson-fermion interactions, we show that quantum droplets can be stabilized by attractive fermion-fermion interactions in the Bardeen-Cooper-Schieffer (BCS) side of the resonance, and can also exist in deep BEC regime under weak boson-fermion interactions. We map out the phase diagram for stable droplets with respect to the boson-boson and boson-fermion interactions, and discuss the role of different types of quantum fluctuations in the relevant regions of the BCS-BEC crossover. Our work reveals the impact of fermion pairing on the formation of quantum droplets in Bose-Fermi mixtures, and provides a useful guide for future experiments.
