Spiral inflation

Gabriela Barenboim; Wan Il Park

doi:10.1016/j.physletb.2014.12.042

Spiral inflation

Gabriela Barenboim
, Wan Il Park^*

^*Corresponding author for this work

Physics Education

University of Valencia

Research output: Contribution to journal › Journal article › peer-review

23 Scopus citations

Abstract

We propose a novel scenario of primordial inflation in which the inflaton goes through a spiral motion starting from around the top of a symmetry breaking potential. We show that, even though inflation takes place for a field value much smaller than Planck scale, it is possible to obtain relatively large tensor-to-scalar ratio (r~. 0.1) without fine tuning. The inflationary observables perfectly match Planck data.

Original language	English
Pages (from-to)	252-255
Number of pages	4
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	741
DOIs	https://doi.org/10.1016/j.physletb.2014.12.042
State	Published - 2015.02.4

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10.1016/j.physletb.2014.12.042

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title = "Spiral inflation",

abstract = "We propose a novel scenario of primordial inflation in which the inflaton goes through a spiral motion starting from around the top of a symmetry breaking potential. We show that, even though inflation takes place for a field value much smaller than Planck scale, it is possible to obtain relatively large tensor-to-scalar ratio (r\textasciitilde{}. 0.1) without fine tuning. The inflationary observables perfectly match Planck data.",

author = "Gabriela Barenboim and Park, \{Wan Il\}",

note = "Publisher Copyright: {\textcopyright} 2014 The Authors.",

year = "2015",

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doi = "10.1016/j.physletb.2014.12.042",

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T1 - Spiral inflation

AU - Barenboim, Gabriela

AU - Park, Wan Il

PY - 2015/2/4

Y1 - 2015/2/4

N2 - We propose a novel scenario of primordial inflation in which the inflaton goes through a spiral motion starting from around the top of a symmetry breaking potential. We show that, even though inflation takes place for a field value much smaller than Planck scale, it is possible to obtain relatively large tensor-to-scalar ratio (r~. 0.1) without fine tuning. The inflationary observables perfectly match Planck data.

AB - We propose a novel scenario of primordial inflation in which the inflaton goes through a spiral motion starting from around the top of a symmetry breaking potential. We show that, even though inflation takes place for a field value much smaller than Planck scale, it is possible to obtain relatively large tensor-to-scalar ratio (r~. 0.1) without fine tuning. The inflationary observables perfectly match Planck data.

UR - https://www.scopus.com/pages/publications/84920672751

U2 - 10.1016/j.physletb.2014.12.042

DO - 10.1016/j.physletb.2014.12.042

M3 - Journal article

AN - SCOPUS:84920672751

SN - 0370-2693

VL - 741

SP - 252

EP - 255

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

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

ER -

Spiral inflation

Abstract

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