Four-particle condensate in strongly coupled fermion systems

Simple item page
dc.creatorRoepke, G.
dc.creatorSchnell, A.
dc.creatorSchuck, P.
dc.creatorNozieres, P.
dc.date1998-03-26
dc.date.accessioned2026-07-07T12:01:16Z
dc.date.available2026-07-07T12:01:16Z
dc.descriptionFour-particle correlations in fermion systems at finite temperatures are investigated with special attention to the formation of a condensate. Instead of the instability of the normal state with respect to the onset of pairing described by the Gorkov equation, a new equation is obtained which describes the onset of quartetting. Within a model calculation for symmetric nuclear matter, we find that below a critical density, the four-particle condensation (alpha-like quartetting) is favored over deuteron condensation (triplet pairing). This pairing-quartetting competition is expected to be a general feature of interacting fermion systems, such as the excition-biexciton system in excited semiconductors. Possible experimental consequences are pointed out.
dc.descriptionLaTeX, 11 pages, 2 figures, uses psfig.sty (included), to be published in Phys. Rev. Lett., tentatively scheduled for 13 April 1998 (Volume 80, Number 15)
dc.identifierhttps://arxiv.org/abs/cond-mat/9803325
dc.identifierhttp://arxiv.org/abs/cond-mat/9803325
dc.identifierPhys.Rev.Lett.80:3177-3180,1998
dc.identifierdoi:10.1103/PhysRevLett.80.3177
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207040
dc.subjectStrongly Correlated Electrons
dc.subjectNuclear Theory
dc.titleFour-particle condensate in strongly coupled fermion systems
dc.typetext

Files

Collections

arXiv