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dc.contributor.author
Mazzitelli, Francisco Diego  
dc.contributor.author
Trombetta, Leonardo Giuliano  
dc.date.available
2020-03-10T19:38:19Z  
dc.date.issued
2018-03-15  
dc.identifier.citation
Mazzitelli, Francisco Diego; Trombetta, Leonardo Giuliano; Comment on "how the huge energy of quantum vacuum gravitates to drive the slow accelerating expansion of the Universe"; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 97; 6; 15-3-2018; 1-2  
dc.identifier.issn
2470-0029  
dc.identifier.uri
http://hdl.handle.net/11336/99055  
dc.description.abstract
In a recent paper [Q. Wang, Z. Zhu, and W. G. Unruh, Phys. Rev. D 95, 103504 (2017)PRVDAQ2470-001010.1103/PhysRevD.95.103504] it was argued that, due to the fluctuations around its mean value, vacuum energy gravitates differently from what was previously assumed. As a consequence, the Universe would accelerate with a small Hubble expansion rate, solving the cosmological constant and dark energy problems. We point out here that the results depend on the type of cutoff used to evaluate the vacuum energy. In particular, they are not valid when one uses a covariant cutoff such that the zero-point energy density is positive definite.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Physical Society  
dc.relation
https://doi.org/10.1103/PhysRevD.95.103504  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Cosmological Constant  
dc.subject
Universe  
dc.subject
Dark energy  
dc.subject
Quantum gravity  
dc.subject.classification
Física de Partículas y Campos  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Comment on "how the huge energy of quantum vacuum gravitates to drive the slow accelerating expansion of the Universe"  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2019-10-15T17:28:49Z  
dc.journal.volume
97  
dc.journal.number
6  
dc.journal.pagination
1-2  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Nueva York  
dc.description.fil
Fil: Mazzitelli, Francisco Diego. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina  
dc.description.fil
Fil: Trombetta, Leonardo Giuliano. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina  
dc.journal.title
Physical Review D: Particles, Fields, Gravitation and Cosmology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prd/abstract/10.1103/PhysRevD.97.068301  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevD.97.068301  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1801.00138  

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