有限温度下囚禁偶极费米子的平衡性质
Equilibrium Properties of a Trapped Dipolar Fermion at Finite Temperatures
摘要：
研究了有限温度下偶极费米气体的平衡性质。我们引入了一个相空间分布函数的变分近似，它可以同时描述实空间和动量空间中的形变。偶极-偶极相互作用对热平衡的影响进行了讨论，特别强调在动量空间的变形。我们通过改变温度、陷阱纵横比和偶极矩来研究系统的稳定性。此外，我们还讨论了如何在高温下观察到实空间和动量空间的形变。
英文摘要：
We study the equilibrium properties of a dipolar Fermi gas at finite temperatures. We introduce a variational ansatz for the phase-space distribution function that can describe the deformation in both real and momentum space. The effect of dipole--dipole interactions on the thermal equilibrium is discussed with particular emphasis on the deformation in momentum space. We examine the stability of the system by varying the temperature, trap aspect ratio, and the dipole moment. In addition, we discuss how the deformation in both real and momentum space can be observed in the high-temperature regime.
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