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Particle Production of Vector Fields: Scale Invariance is Attractive

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Particle Production of Vector Fields: Scale Invariance is Attractive. / Wagstaff, Jacques; Dimopoulos, Konstantinos.

In: Physical Review D, Vol. 83, No. 2, 023523, 25.01.2011.

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Wagstaff, Jacques ; Dimopoulos, Konstantinos. / Particle Production of Vector Fields: Scale Invariance is Attractive. In: Physical Review D. 2011 ; Vol. 83, No. 2.

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@article{1af644fad7c84bfa869e5f8626e09c0a,
title = "Particle Production of Vector Fields: Scale Invariance is Attractive",
abstract = "In a model of an Abelian vector boson with a Maxwell kinetic term and non-negative mass-squared it is demonstrated that, under fairly general conditions during inflation, a scale-invariant spectrum of perturbations for the components of a vector field, massive or not, whose kinetic function (and mass) is modulated by the inflaton field is an attractor solution. If the field is massless, or if it remains light until the end of inflation, this attractor solution also generates anisotropic stress, which can render inflation weakly anisotropic. The above two characteristics of the attractor solution can source (independently or combined together) significant statistical anisotropy in the curvature perturbation, which may well be observable in the near future.",
author = "Jacques Wagstaff and Konstantinos Dimopoulos",
note = " arXiv:1011.2517 [hep-ph] {\textcopyright} 2011 American Physical Society",
year = "2011",
month = jan,
day = "25",
doi = "10.1103/PhysRevD.83.023523",
language = "English",
volume = "83",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "2",

}

RIS

TY - JOUR

T1 - Particle Production of Vector Fields: Scale Invariance is Attractive

AU - Wagstaff, Jacques

AU - Dimopoulos, Konstantinos

N1 - arXiv:1011.2517 [hep-ph] © 2011 American Physical Society

PY - 2011/1/25

Y1 - 2011/1/25

N2 - In a model of an Abelian vector boson with a Maxwell kinetic term and non-negative mass-squared it is demonstrated that, under fairly general conditions during inflation, a scale-invariant spectrum of perturbations for the components of a vector field, massive or not, whose kinetic function (and mass) is modulated by the inflaton field is an attractor solution. If the field is massless, or if it remains light until the end of inflation, this attractor solution also generates anisotropic stress, which can render inflation weakly anisotropic. The above two characteristics of the attractor solution can source (independently or combined together) significant statistical anisotropy in the curvature perturbation, which may well be observable in the near future.

AB - In a model of an Abelian vector boson with a Maxwell kinetic term and non-negative mass-squared it is demonstrated that, under fairly general conditions during inflation, a scale-invariant spectrum of perturbations for the components of a vector field, massive or not, whose kinetic function (and mass) is modulated by the inflaton field is an attractor solution. If the field is massless, or if it remains light until the end of inflation, this attractor solution also generates anisotropic stress, which can render inflation weakly anisotropic. The above two characteristics of the attractor solution can source (independently or combined together) significant statistical anisotropy in the curvature perturbation, which may well be observable in the near future.

UR - http://www.scopus.com/inward/record.url?scp=79551536453&partnerID=8YFLogxK

U2 - 10.1103/PhysRevD.83.023523

DO - 10.1103/PhysRevD.83.023523

M3 - Journal article

AN - SCOPUS:79551536453

VL - 83

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 2

M1 - 023523

ER -