dc.contributor.author | Figueroa, Daniel G. | |
dc.contributor.author | Lizarraga Olano, Joanes ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.contributor.author | Urio Garmendia, Ander ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.contributor.author | Urrestilla Urizabal, Jon ![ORCID](/themes/Mirage2//images/orcid_16x16.png) | |
dc.date.accessioned | 2023-12-29T09:37:19Z | |
dc.date.available | 2023-12-29T09:37:19Z | |
dc.date.issued | 2023-10-13 | |
dc.identifier.citation | Physical Review Letters 131(15) : (2023) // Article ID 151003 | es_ES |
dc.identifier.issn | 1079-7114 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 10.1103/PhysRevLett.131.151003 | |
dc.identifier.uri | http://hdl.handle.net/10810/63706 | |
dc.description.abstract | We study the nonlinear dynamics of axion inflation, capturing for the first time the inhomogeneity and full dynamical range during strong backreaction, till the end of inflation. Accounting for inhomogeneous effects leads to a number of new relevant results, compared to spatially homogeneous studies: (i) the number of extra efoldings beyond slow-roll inflation increases very rapidly with the coupling, (ii) oscillations of the inflaton velocity are attenuated, (iii) the tachyonic gauge field helicity spectrum is smoothed out (i.e., the spectral oscillatory features disappear), broadened, and shifted to smaller scales, and (iv) the nontachyonic helicity is excited, reducing the chiral asymmetry, now scale dependent. Our results are expected to impact strongly on the phenomenology and observability of axion inflation, including gravitational wave generation and primordial black hole production. | es_ES |
dc.description.sponsorship | D. G. F. is supported by a Ramón y Cajal contract with Ref. No. RYC-2017- 23493 and by EUR2022-134028. This work was supported by Generalitat Valenciana Grant No. PROMETEO/2021/ 083, and by Spanish Ministerio de Ciencia e Innovación Grant No. PID2020–113644 GB-I00. J. L., A. U., and J. U. acknowledge support from Eusko Jaurlaritza (IT1628-22) and by the PID2021-123703NB-C21 grant funded by MCIN/AEI/10.13039/501100011033 and by ERDF, “A way of making Europe.” In particular, A. U. gratefully acknowledges the support from the University of the Basque Country Grant No. PIF20/151. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | APS | es_ES |
dc.relation | info:eu-repo/grantAgreement/MCIN/PID2020–113644GB-I00 | es_ES |
dc.relation | nfo:eu-repo/grantAgreement/MCIN/PID2021-123703NB-C2 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | Inflation, axions, lattice simulations | es_ES |
dc.subject | inflation | es_ES |
dc.subject | axions | es_ES |
dc.subject | lattice simulations | es_ES |
dc.title | The strong backreaction regime in axion inflation | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2023 American Physical Society | es_ES |
dc.relation.publisherversion | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.131.151003 | es_ES |
dc.departamentoes | Física | es_ES |
dc.departamentoeu | Fisika | es_ES |