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Classical and quantum cosmology of Fab Four John theories

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dc.contributor.authorTorres, I.
dc.contributor.authorPiattella, O. F.
dc.contributor.authorFabris, J. C.
dc.date.accessioned2024-11-21T12:20:45Z
dc.date.available2024-11-21T12:20:45Z
dc.date.issued2019
dc.description.abstract© 2019 The Author(s)We study the John term of Fab Four cosmology in the presence of a scalar potential. We show here how this theory can describe a wide range of cosmological solutions. This theory has two general functions of the scalar field: the potential V(ϕ) and the John coefficient function Vj(ϕ). We show that for very simple choices of those functions, we can describe an accelerated expansion, a radiation-dominated era, and a matter-dominated era. By means of simple modifications, it is also possible to describe nonsingular bouncing versions of those solutions and cyclic universes. We also address some quantum issues of that theory, showing that, for the most significant singular cases, the theory admits a classically well behaved quantization, even though the Hamiltonian has fractional powers in the momenta.
dc.identifier.citationTorres, I. Classical and quantum cosmology of Fab Four John theories / Torres, I., Piattella, O.F., Fabris, J.C. // Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. - 2019. - 798. - 10.1016/j.physletb.2019.135003
dc.identifier.doi10.1016/j.physletb.2019.135003
dc.identifier.urihttps://www.doi.org/10.1016/j.physletb.2019.135003
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85072955692&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000494939000006
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/18739
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.titleClassical and quantum cosmology of Fab Four John theories
dc.typeArticle
dspace.entity.typePublication
oaire.citation.volume798
relation.isOrgUnitOfPublicationba0b4738-e6bd-4285-bda5-16ab2240dbd1
relation.isOrgUnitOfPublication.latestForDiscoveryba0b4738-e6bd-4285-bda5-16ab2240dbd1
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