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dc.contributor.author | Antusch, Stefan | es_ES |
dc.contributor.author | Figueroa, Daniel G. | es_ES |
dc.contributor.author | Marschall, K. | es_ES |
dc.contributor.author | Torrentí Salom, Francisco | es_ES |
dc.date.accessioned | 2023-03-08T12:50:04Z | - |
dc.date.available | 2023-03-08T12:50:04Z | - |
dc.date.issued | 2022-02 | - |
dc.identifier | doi: 10.1103/PhysRevD.105.043532 | - |
dc.identifier | issn: 2470-0029 | - |
dc.identifier.citation | Physical Review D 105: 043532 (2022) | es_ES |
dc.identifier.uri | http://hdl.handle.net/10261/296961 | - |
dc.description.abstract | We study the evolution of the energy distribution and equation of state of the Universe from the end of inflation until the onset of either radiation domination (RD) or a transient period of matter domination (MD). We use both analytical techniques and lattice simulations. We consider two-field models where the inflaton φ has a monomial potential after inflation V(φ) |φ-v|p (p≥2) and is coupled to a daughter field X through a quadratic-quadratic interaction g2φ2X2. We consider two situations, depending on whether the potential has a minimum at (i) v=0, or (ii) v>0. In the scenario (i), the final energy transferred to X is independent of g2 and entirely determined by p: it is negligible for p<4, and of order ∼50% for p≥4. The system goes to MD at late times for p=2, while it goes to RD for p>2. In the later case, we can calculate exactly the number of e-folds until RD as a function of g2, and hence predict accurately inflationary observables like the scalar tilt ns and the tensor-to-scalar ratio r. In the scenario (ii), the energy is always transferred completely to X for p>2, as long as its effective mass mX2=g2(φ-v)2 is not negligible. For p=2, the final ratio between the energy densities of X and φ depends strongly on g2. For all p≥2, the system always goes to MD at late times. | es_ES |
dc.description.sponsorship | D. G. F. (ORCID 0000-0002-4005-8915) is supported by a Ramón y Cajal contract with Ref. RYC-2017-23493. F. T. has been supported by the Research Fund for Junior Researchers of the U. Basel. S. A., K.M., and F. T. acknowledge support by the Swiss National Science Foundation (Project No. 200020/175502). This work is also supported by project PROMETEO/2021/083 from Generalitat Valenciana, and by Project No. PID2020– 113644 GB-I00 from Ministerio de Ciencia e Innovación. | es_ES |
dc.language | eng | - |
dc.publisher | American Physical Society | es_ES |
dc.relation | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113644GB-I00/ES/SABOR Y ORIGEN DE LA MATERIA/ | es_ES |
dc.relation | info:eu-repo/grantAgreement/GVA//PROMETEO/2021/083 | es_ES |
dc.relation.isversionof | Publisher's version | es_ES |
dc.rights | openAccess | es_ES |
dc.title | Characterizing the postinflationary reheating history: Single daughter field with quadratic-quadratic interaction | es_ES |
dc.type | artículo | es_ES |
dc.identifier.doi | 10.1103/PhysRevD.105.043532 | - |
dc.description.peerreviewed | Peer reviewed | es_ES |
dc.relation.publisherversion | http://dx.doi.org/10.1103/PhysRevD.105.043532 | es_ES |
dc.date.updated | 2023-03-08T12:50:04Z | - |
dc.contributor.funder | Ministerio de Ciencia e Innovación (España) | es_ES |
dc.contributor.funder | Generalitat Valenciana | es_ES |
dc.relation.csic | Sí | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003359 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100004837 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
item.openairetype | artículo | - |
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