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dc.contributor.author
Alcubierre, Miguel
dc.contributor.author
Barranco, Juan
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Bernal, Argelia
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Degollado, Juan Carlos
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Diez Tejedor, Alberto
dc.contributor.author
Megevand Politano, Miguel Federico
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dc.contributor.author
Núñez, Darío
dc.contributor.author
Sarbach, Olivier
dc.date.available
2024-02-09T13:34:37Z
dc.date.issued
2023-02
dc.identifier.citation
Alcubierre, Miguel; Barranco, Juan; Bernal, Argelia; Degollado, Juan Carlos; Diez Tejedor, Alberto; et al.; Boson stars and their relatives in semiclassical gravity; American Physical Society; Physical Review D; 107; 4; 2-2023; 1-21
dc.identifier.issn
2470-0010
dc.identifier.uri
http://hdl.handle.net/11336/226575
dc.description.abstract
We construct boson star configurations in quantum field theory using the semiclassical gravity approximation. Restricting our attention to the static case, we show that the semiclassical Einstein-Klein-Gordon system for a single real quantum scalar field whose state describes the excitation of N identical particles, each one corresponding to a given energy level, can be reduced to the Einstein-Klein-Gordon system for N complex classical scalar fields. Particular consideration is given to the spherically symmetric static scenario, where energy levels are labeled by quantum numbers n, ℓ, and m. When all particles are accommodated in the ground state n=ℓ=m=0, one recovers the standard static boson star solutions, that can be excited if n≠0. On the other hand, for the case where all particles have fixed radial and total angular momentum numbers n and ℓ, with ℓ≠0, but are homogeneously distributed with respect to their magnetic number m, one obtains the ℓ-boson stars, whereas when ℓ=m=0 and n takes multiple values, the multistate boson star solutions are obtained. Further generalizations of these configurations are presented, including the multi-ℓ multistate boson stars, that constitute the most general solutions to the N-particle, static, spherically symmetric, semiclassical real Einstein-Klein-Gordon system, in which the total number of particles is definite. In spite of the fact that the same spacetime configurations also appear in multifield classical theories, in semiclassical gravity, they arise naturally as the quantum fluctuations associated with the state of a single field describing a many-body system. Our results could have potential impact on direct detection experiments in the context of ultralight scalar field/fuzzy dark matter candidates.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Boson stars
dc.subject
Semiclassical approximation
dc.subject.classification
Astronomía
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Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Boson stars and their relatives in semiclassical gravity
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-02-08T10:56:24Z
dc.identifier.eissn
2470-0029
dc.journal.volume
107
dc.journal.number
4
dc.journal.pagination
1-21
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
New York
dc.description.fil
Fil: Alcubierre, Miguel. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Barranco, Juan. Universidad de Guanajuato; México
dc.description.fil
Fil: Bernal, Argelia. Universidad de Guanajuato; México
dc.description.fil
Fil: Degollado, Juan Carlos. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Diez Tejedor, Alberto. Universidad de Guanajuato; México
dc.description.fil
Fil: Megevand Politano, Miguel Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
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Fil: Núñez, Darío. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Sarbach, Olivier. Universidad Michoacana de San Nicolás de Hidalgo; México
dc.journal.title
Physical Review D
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevD.107.045017
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