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Cited by 525

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Equation of State of a Fermi Gas in the BEC-BCS Crossover: A Quantum Monte Carlo Study

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Astrakharchik, G. E., Boronat, J., Casulleras, J., Giorgini, and S.·2004·Physical Review Letters
DOI 10.1103/physrevlett.93.200404
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Abstract

We calculate the equation of state of a two-component Fermi gas with attractive short-range interspecies interactions using the fixed-node diffusion Monte Carlo method. The interaction strength is varied over a wide range by tuning the value a of the s-wave scattering length of the two-body potential. For a>0 and a smaller than the inverse Fermi wave vector our results show a molecular regime with repulsive interactions well described by the dimer-dimer scattering length a(m)=0.6a. The pair correlation functions of parallel and opposite spins are also discussed as a function of the interaction strength.

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Metadata

Authors
Astrakharchik, G. E., Boronat, J., Casulleras, J., & Giorgini, A. S.
Venue
Physical Review Letters
Publisher
American Physical Society (APS)
Published
2004-11-10
Volume
93
Issue
20
Pages
200404-200404
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
DOI
10.1103/physrevlett.93.200404
OpenAlex
W2004000433
Cited by
525
References
0
FWCI
25.59
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Equation of State of a Fermi Gas in the BEC-BCS Crossover: A Quantum Monte Carlo Study. https://app.cochat.ai/papers/10.1103/physrevlett.93.200404
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Astrakharchik, G. E., Boronat, J., Casulleras, J., & Giorgini, A. S. (2004). Equation of State of a Fermi Gas in the BEC-BCS Crossover: A Quantum Monte Carlo Study. Physical Review Letters. https://doi.org/10.1103/physrevlett.93.200404

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