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Vector-boson condensates, spin-triplet superfluidity of paired neutral and charged fermions, and 3P(2) pairing of nucleons

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dc.contributor.authorVoskresensky, D. N.
dc.contributor.authorВоскресенский, Дмитрий Николаевич
dc.date.accessioned2024-11-25T17:30:23Z
dc.date.available2024-11-25T17:30:23Z
dc.date.issued2020
dc.description.abstractAfter reminding of properties of the condensate of the complex scalar field in the external uniform magnetic field H, focus is made on the study of phases of the complex neutral vector-boson fields coupled with magnetic field by the Zeeman coupling and phases of the charged vector-boson fields. The systems may behave as nonmagnetic and ferromagnetic superfluids and ordinary and ferromagnetic superconductors. Response of these superfluid and superconducting systems occupying half of space on the external uniform static magnetic field H is thoroughly studied. Then the spin-triplet pairing of neutral fermions at conserved spin is considered. Novel phases are found. In external magnetic field, the phase with zero mean spin proves to be unstable to the formation of a phase with a nonzero spin. For a certain parameter choice ferromagnetic superfluid phases are formed already for H = 0, characterized by an own magnetic field h. For H > H-cr2, the spin-triplet pairing and ferromagnetic superfluidity continue to exist above the "old" phase transition critical temperature T-cr. Formation of domains is discussed. Next, spintriplet pairing of charged fermions is studied. Novel phases are found. Then, the 3P(2) nn pairing in neutron star matter is studied. Also, a 3P(2) pp pairing is considered. Numerical estimates are performed in the BCS weak-coupling limit and beyond it for the 3P(2) tin and pp pairings, as well as for the 3S(1) np pairing.
dc.identifier.citationVoskresensky, D. N. Vector-boson condensates, spin-triplet superfluidity of paired neutral and charged fermions, and 3P(2) pairing of nucleons / Voskresensky, DN // Physical Review D. - 2020. - 101. - № 5. - 10.1103/PhysRevD.101.056011
dc.identifier.doi10.1103/PhysRevD.101.056011
dc.identifier.urihttps://www.doi.org/10.1103/PhysRevD.101.056011
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85083427680&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000519886300014
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/20484
dc.relation.ispartofPhysical Review D
dc.titleVector-boson condensates, spin-triplet superfluidity of paired neutral and charged fermions, and 3P(2) pairing of nucleons
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.volume101
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relation.isAuthorOfPublication.latestForDiscoveryaf79c910-886c-41ec-920c-e3c840638b32
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