Multifield dynamics of Higgs inflation

Greenwood, Ross N.; Kaiser, David I.; Sfakianakis, Evangelos I.

doi:10.1103/PhysRevD.87.064021

Title: Multifield dynamics of Higgs inflation

Full Record
Other Related Research

Authors:: Greenwood, Ross N.; Kaiser, David I.; Sfakianakis, Evangelos I.

Publication Date:: 2013-03-18

Sponsoring Org.:: USDOE

OSTI Identifier:: 1103913

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 87; Journal Issue: 6; Journal ID: ISSN 1550-7998

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Greenwood, Ross N., Kaiser, David I., and Sfakianakis, Evangelos I. Multifield dynamics of Higgs inflation.  United States: N. p., 2013. 
Web.  doi:10.1103/PhysRevD.87.064021.

Copy to clipboard


                    Greenwood, Ross N., Kaiser, David I., & Sfakianakis, Evangelos I. Multifield dynamics of Higgs inflation.  United States.  https://doi.org/10.1103/PhysRevD.87.064021

Copy to clipboard


                    Greenwood, Ross N., Kaiser, David I., and Sfakianakis, Evangelos I. Mon .  
"Multifield dynamics of Higgs inflation".  United States.  https://doi.org/10.1103/PhysRevD.87.064021.

Copy to clipboard


                    
@article{osti_1103913,

  title        = {Multifield dynamics of Higgs inflation},

  author       = {Greenwood, Ross N. and Kaiser, David I. and Sfakianakis, Evangelos I.},

  abstractNote = {},

  doi          = {10.1103/PhysRevD.87.064021},

  journal      = {Physical Review D},

  number       = 6,

  volume       = 87,

  place        = {United States},

  year         = {2013},

  month        = {3}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.87.064021

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 69 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE PAGES and OSTI.GOV collections:

Nonlinear Dynamics of Preheating after Multifield Inflation with Nonminimal Couplings

Journal Article Nguyen, Rachel ; van de Vis, Jorinde ; Sfakianakis, Evangelos I. ; ... - Physical Review Letters
Cited by 20
https://doi.org/10.1103/PhysRevLett.123.171301
Preheating after multifield inflation with nonminimal couplings. III. Dynamical spacetime results

Journal Article DeCross, Matthew P. ; Kaiser, David I. ; Prabhu, Anirudh ; ... - Physical Review D

This paper concludes our semianalytic study of preheating in inflationary models comprised of multiple scalar fields coupled nonminimally to gravity. Using the covariant framework of paper I in this series, we extend here the rigid-spacetime results of paper II by considering both the expansion of the Universe during preheating, as well as the effect of the coupled metric perturbations on particle production. The adiabatic and isocurvature perturbations are governed by different effective masses that scale differently with the nonminimal couplings and evolve differently in time. The effective mass for the adiabatic modes is dominated by contributions from the coupled metric perturbations immediately after inflation. The metric perturbations contribute an oscillating tachyonic term that enhances an early period of significant particle production for the adiabatic modes, which ceases on a time scale governed by the nonminimal couplingsmore »« less
Cited by 51
https://doi.org/10.1103/physrevd.97.023528

Full Text Available
Generically large nongaussianity in small multifield inflation

Journal Article Bramante, Joseph - Journal of Cosmology and Astroparticle Physics

If forthcoming measurements of cosmic photon polarization restrict the primordial tensor-to-scalar ratio to r < 0.01, small field inflation will be a principal candidate for the origin of the universe. Here we show that small multifield inflation, without the hybrid mechanism, typically results in large squeezed nongaussianity. Small multifield potentials contain multiple flat field directions, often identified with the gauge invariant field directions in supersymmetric potentials. We find that unless these field directions have equal slopes, large nongaussianity arises. After identifying relevant differences between large and small two-field potentials, we demonstrate that the latter naturally fulfill the Byrnes-Choi-Hall large nongaussianity conditions. Computationsmore »« less
https://doi.org/10.1088/1475-7516/2015/07/006
Suppression of parametric resonance and the viability of tachyonic preheating after multifield inflation

Journal Article Battefeld, Diana ; Battefeld, Thorsten ; Giblin, Jr, John T ; ... - Physical Review. D, Particles Fields

We investigate the feasibility of explosive particle production via parametric resonance or tachyonic preheating in multifield inflationary models by means of lattice simulations. We observe a strong suppression of resonances in the presence of four-leg interactions between the inflaton fields and a scalar matter field, leading to insufficient preheating when more than two inflatons couple to the same matter field. This suppression is caused by a dephasing of the inflatons that increases the effective mass of the matter field. Including three-leg interactions leads to tachyonic preheating, which is not suppressed by an increase in the number of fields. If four-legmore »« less
https://doi.org/10.1103/PHYSREVD.79.123510
The Effective Field Theory of Multifield Inflation

Journal Article Senatore, Leonardo ; /Princeton, Inst. Advanced Study /Stanford U., Phys. Dept. /KIPAC, Menlo Park ; Zaldarriaga, Matias ; ... - JHEP 1204:024,2012
Full Text Available

Similar Records