Virial expansion coefficients in the unitary Fermi gas
Virial expansion coefficients in the unitary Fermi gas
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DOI：
10.21468/scipostphysproc.3.049
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发表时间：
2020-02
期刊：
影响因子：
--
通讯作者：
Shimpei Endo
中科院分区：
文献类型：
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作者：
Shimpei Endo
维里展开被广泛应用于冷原子中分析高温强相关多体系统。由于n阶维里展开系数可以通过精确求解最多n个体的问题得到，因此维里展开为研究强相关多体问题提供了一种少体方法。特别是，病毒展开已成功地应用于单一费米气体。本文综述了近年来关于统一费米气体中维里展开的研究进展，特别是关于四阶维里系数的研究进展。
Virial expansion is widely used in cold atoms to analyze high temperature strongly correlated many-body systems. As the n-th order virial expansion coefficient can be accurately obtained by exactly solving up to n-body problems, the virial expansion offers a few-body approach to study strongly correlated many-body problems. In particular, the virial expansion has successfully been applied to unitary Fermi gas. We review recent progress of the virial expansion studies in the unitary Fermi gas, in particular the fourth order virial coefficient.