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On the higher virial coefficients of a unitary Fermi gas
- Source :
- Physical Review A, 88, 045602 (2013)
- Publication Year :
- 2013
-
Abstract
- Third and higher order quantum virial coefficients require the solution of the corresponding quantum many-body problem. Nevertheless, in an earlier paper (Phys. Rev. Lett. 108, 260402 (2012)) we proposed that the higher-order cluster integrals of a dilute unitary fermionic gas may be approximated in terms of the two-body cluster, together with an appropriate suppression factor. Although not exact, this ansatz gave a fair agreement up to fugacity z=6 with the experimentally obtained equation of state. The objective of the present note is to give some physical arguments in favor of this ansatz.<br />Comment: 3 pages, 3 figures
- Subjects :
- Condensed Matter - Quantum Gases
Subjects
Details
- Database :
- arXiv
- Journal :
- Physical Review A, 88, 045602 (2013)
- Publication Type :
- Report
- Accession number :
- edsarx.1310.4726
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevA.88.045602