## SciPost Submission Page

# Virial expansion coefficients in the unitary Fermi gas

### by Shimpei Endo

### Submission summary

As Contributors: | Shimpei Endo |

Preprint link: | scipost_201910_00037v1 |

Date submitted: | 2019-10-24 |

Submitted by: | Endo, Shimpei |

Submitted to: | SciPost Physics Proceedings |

Proceedings issue: | 24th European Few Body Conference (University of Surrey, U.K.) |

Discipline: | Physics |

Subject area: | Atomic, Molecular and Optical Physics - Theory |

Approach: | Theoretical |

### Abstract

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.

###### Current status:

Editor-in-charge assigned