Evaluation of the cosmological constant in inflation with a massive nonminimal scalar field
type: Item
instance of: scholarly article
title: Evaluation of the cosmological constant in inflation with a massive nonminimal scalar field
zbMATH Open document ID: 1433.83048
DOI: 10.1155/2015/569789
author: Jung-Jeng Huang
published in: Advances in High Energy Physics
publication date: 2015-11-06T00:00:00Z
full work available at URL: https://arxiv.org/abs/1509.08587
review text: Summary: In Schrödinger picture we study the possible effects of trans-Planckian physics on the quantum evolution of massive nonminimally coupled scalar field in de Sitter space. For the nonlinear Corley-Jacobson type dispersion relations with quartic or sextic correction, we obtain the time evolution of the vacuum state wave functional during slow-roll inflation and calculate explicitly the corresponding expectation value of vacuum energy density. We find that the vacuum energy density is finite. For the usual dispersion parameter choice, the vacuum energy density for quartic correction to the dispersion relation is larger than for sextic correction, while for some other parameter choices, the vacuum energy density for quartic correction is smaller than for sextic correction. We also use the backreaction to constrain the magnitude of parameters in nonlinear dispersion relation and show how the cosmological constant depends on the parameters and the energy scale during the inflation at the grand unification phase transition.
Mathematics Subject Classification ID: 83F05
Mathematics Subject Classification ID: 83B05
zbMATH DE Number: 6505152
Wikidata QID: Q59102305
MaRDI profile type: Publication
OpenAlex ID: W2151388975
arXiv ID: 1509.08587
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description: scientific article