Ground-state energy of the unitary Fermi gas from the epsilon expansion

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dc.creatorNishida, Yusuke
dc.date2008-08-28
dc.date2009-01-29
dc.date.accessioned2026-07-07T12:37:28Z
dc.date.available2026-07-07T12:37:28Z
dc.descriptionWe update the ground-state energy ratio of unitary Fermi gas to noninteracting Fermi gas (xi) from the epsilon expansion by including the next-to-next-to-leading-order (NNLO) term near two spatial dimensions. Interpolations of the NNLO epsilon expansions around four and two spatial dimensions with the use of Pade approximants give xi=0.360+/-0.020 in three dimensions with the uncertainty due to different interpolation functions. This value is consistent with the previous interpolations of the NLO epsilon expansions xi=0.377+/-0.014 in spite of the large NNLO corrections.
dc.description6 pages, 5 figures; (v2) corrected NNLO term near d=2; (v3) published version
dc.identifierhttps://arxiv.org/abs/0808.3826
dc.identifierhttp://arxiv.org/abs/0808.3826
dc.identifierPhys.Rev.A79:013627,2009
dc.identifierdoi:10.1103/PhysRevA.79.013627
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218449
dc.subjectOther Condensed Matter
dc.subjectNuclear Theory
dc.titleGround-state energy of the unitary Fermi gas from the epsilon expansion
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