Emergent universe from scale invariant two measures theory

Sergio Del Campo; Eduardo I. Guendelman; Alexander B. Kaganovich; Ramón Herrera; Pedro Labraña

doi:10.1016/j.physletb.2011.03.061

Emergent universe from scale invariant two measures theory

Sergio Del Campo
, Eduardo I. Guendelman
, Alexander B. Kaganovich
, Ramón Herrera
, Pedro Labraña

Department of Physics

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

The dilaton-gravity sector of a linear in the scalar curvature, scale invariant Two Measures Field Theory (TMT), is explored in detail in the context of closed FRW cosmology and shown to allow stable emerging universe solutions. The model possesses scale invariance which is spontaneously broken due to the intrinsic features of the TMT dynamics. We study the transition from the emerging phase to inflation, and then to a zero cosmological constant phase. We also study the spectrum of density perturbations and the constraints that impose on the parameters of the theory.

Original language	English
Pages (from-to)	211-216
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	699
Issue number	4
DOIs	https://doi.org/10.1016/j.physletb.2011.03.061
State	Published - 16 May 2011

Keywords

Emergent universe
Inflation

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2011.03.061

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title = "Emergent universe from scale invariant two measures theory",

abstract = "The dilaton-gravity sector of a linear in the scalar curvature, scale invariant Two Measures Field Theory (TMT), is explored in detail in the context of closed FRW cosmology and shown to allow stable emerging universe solutions. The model possesses scale invariance which is spontaneously broken due to the intrinsic features of the TMT dynamics. We study the transition from the emerging phase to inflation, and then to a zero cosmological constant phase. We also study the spectrum of density perturbations and the constraints that impose on the parameters of the theory.",

keywords = "Emergent universe, Inflation",

author = "\{Del Campo\}, Sergio and Guendelman, \{Eduardo I.\} and Kaganovich, \{Alexander B.\} and Ram{\'o}n Herrera and Pedro Labra{\~n}a",

year = "2011",

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doi = "10.1016/j.physletb.2011.03.061",

language = "English",

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T1 - Emergent universe from scale invariant two measures theory

AU - Del Campo, Sergio

AU - Guendelman, Eduardo I.

AU - Kaganovich, Alexander B.

AU - Herrera, Ramón

AU - Labraña, Pedro

PY - 2011/5/16

Y1 - 2011/5/16

N2 - The dilaton-gravity sector of a linear in the scalar curvature, scale invariant Two Measures Field Theory (TMT), is explored in detail in the context of closed FRW cosmology and shown to allow stable emerging universe solutions. The model possesses scale invariance which is spontaneously broken due to the intrinsic features of the TMT dynamics. We study the transition from the emerging phase to inflation, and then to a zero cosmological constant phase. We also study the spectrum of density perturbations and the constraints that impose on the parameters of the theory.

AB - The dilaton-gravity sector of a linear in the scalar curvature, scale invariant Two Measures Field Theory (TMT), is explored in detail in the context of closed FRW cosmology and shown to allow stable emerging universe solutions. The model possesses scale invariance which is spontaneously broken due to the intrinsic features of the TMT dynamics. We study the transition from the emerging phase to inflation, and then to a zero cosmological constant phase. We also study the spectrum of density perturbations and the constraints that impose on the parameters of the theory.

KW - Emergent universe

KW - Inflation

UR - https://www.scopus.com/pages/publications/79955521500

U2 - 10.1016/j.physletb.2011.03.061

DO - 10.1016/j.physletb.2011.03.061

M3 - Article

AN - SCOPUS:79955521500

SN - 0370-2693

VL - 699

SP - 211

EP - 216

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -

Emergent universe from scale invariant two measures theory

Abstract

Keywords

ASJC Scopus subject areas

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