Induced p-wave superfluidity in two dimensions: Brane world in cold atoms and nonrelativistic defect CFTs

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dc.creatorNishida, Yusuke
dc.date2008-10-08
dc.date2009-02-10
dc.date.accessioned2026-07-07T12:51:18Z
dc.date.available2026-07-07T12:51:18Z
dc.descriptionWe propose to use a two-species Fermi gas with the interspecies s-wave Feshbach resonance to realize p-wave superfluidity in two dimensions. By confining one species of fermions in a two-dimensional plane immersed in the background three-dimensional Fermi sea of the other species, an attractive interaction is induced between two-dimensional fermions. We compute the pairing gap in the weak-coupling regime and show that it has the symmetry of p_x+ip_y. Because the magnitude of the pairing gap increases toward the unitarity limit, it is possible that the critical temperature for the p_x+ip_y-wave superfluidity becomes within experimental reach. The resulting system has a potential application to topological quantum computation using vortices with non-Abelian statistics. We also discuss aspects of our system in the unitarity limit as a "nonrelativistic defect conformal field theory (CFT)". The reduced Schrödinger algebra, operator-state correspondence, scaling dimensions of composite operators, and operator product expansions are investigated.
dc.description22 pages, 10 figures; version to appear in Ann. Phys
dc.identifierhttps://arxiv.org/abs/0810.1321
dc.identifierhttp://arxiv.org/abs/0810.1321
dc.identifierAnnals Phys.324:897-919,2009
dc.identifierdoi:10.1016/j.aop.2008.10.011
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/222950
dc.subjectOther Condensed Matter
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleInduced p-wave superfluidity in two dimensions: Brane world in cold atoms and nonrelativistic defect CFTs
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