Gauge field preheating at the end of inflation

Deskins, J. Tate; Giblin, John T.; Caldwell, Robert R.

doi:10.1103/physrevd.88.063530

Cited by 50 publications

(67 citation statements)

References 95 publications

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“…The production of particles in models involving gauge interactions have been widely studied in the literature (see, for instance, [17][18][19][55][56][57][58][59][60]). As explicitly demonstrated in Ref.…”

Section: Scope and Limitations Of The Resultsmentioning

confidence: 99%

Combined preheating on the lattice with applications to Higgs inflation

Repond

Rubio

2016

J. Cosmol. Astropart. Phys.

128

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Abstract. We use classical lattice simulations in 3+1 dimensions to study the interplay between the resonant production of particles during preheating and the subsequent decay of these into a set of secondary species. We choose to work in a simplified version of Higgs inflation in which the Higgs field non-minimally coupled to gravity plays the role of the inflaton. Our numerical results extend the analytical estimates in the literature beyond the linear regime and shed some light on the limitations of the analytical techniques. The inclusion of fast and inefficient decays postpones the onset of parametric resonance by depleting the particles produced at the bottom of the potential. In spite of this delay, fermions are shown to play an important role on the destruction of the inflaton field. The limitations of our approach and its applications to a realistic Higgs inflation scenario are also discussed.

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Section: Scope and Limitations Of The Resultsmentioning

confidence: 99%

Combined preheating on the lattice with applications to Higgs inflation

Repond

Rubio

2016

J. Cosmol. Astropart. Phys.

128

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show abstract

“…In dependence from couplings between the inflaton and matter fields, this process sometimes might to proceed non-perturbatively and parametric resonance may play crucial role for bosonic fields [55], [56]. Since the electromagnetic field could be significantly amplified during preheating [57][58][59][60][61][62][63][64], we study also the postinflationary amplification of magnetic fields in the present paper and quantify how it affects the magnetic fields generated during inflation and preheating in the Starobinsky model. This paper is organized as follows.…”

Section: Introductionmentioning

confidence: 99%

Magnetogenesis during inflation and preheating in the Starobinsky model

et al. 2017

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By assuming the kinetic coupling f 2 (φ)F F of the effective inflaton field φ with the electromagnetic field, we explore magnetogenesis during the inflation and preheating stages in the R 2 Starobinsky model [1]. We consider the case of the exponential coupling function f (φ) = exp(αφ/Mp) and show that for α ∼ 12 − 15 it is possible to generate the large scale magnetic fields with strength 10 −15 Gauss at the present epoch. The spectrum of generated magnetic fields is blue with the spectral index n = 1+s, s > 0. We have found that for the relevant values of the coupling parameter, α = 12 − 15, model avoids the back-reaction problem for all relevant modes.

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“…A number of authors have considered lattice simulations of reheating involving Abelian gauge fields [133][134][135] and non-Abelian gauge fields…”

Section: -132mentioning

confidence: 99%

Nonperturbative dynamics of reheating after inflation: A review

Amin

Hertzberg

Kaiser

et al. 2014

Int. J. Mod. Phys. D

442

492

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Our understanding of the state of the universe between the end of inflation and big bang nucleosynthesis (BBN) is incomplete. The dynamics at the end of inflation are rich and a potential source of observational signatures. Reheating, the energy transfer between the inflaton and Standard Model fields (possibly through intermediaries) and their subsequent thermalization, can provide clues to how inflation fits in with known high-energy physics. We provide an overview of our current understanding of the nonperturbative, nonlinear dynamics at the end of inflation, some salient features of realistic particle physics models of reheating, and how the universe reaches a thermal state before BBN. In addition, we review the analytical and numerical tools available in the literature to study preheating and reheating and discuss potential observational signatures from this fascinating era.

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Gauge field preheating at the end of inflation

Cited by 50 publications

References 95 publications

Combined preheating on the lattice with applications to Higgs inflation

Combined preheating on the lattice with applications to Higgs inflation

Magnetogenesis during inflation and preheating in the Starobinsky model

Nonperturbative dynamics of reheating after inflation: A review

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