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Title: Inflation from periodic extra dimensions

Abstract

We discuss a realization of a small field inflation based on string inspired supergravities. In theories accompanying extra dimensions, compactification of them with small radii is required for realistic situations. Since the extra dimension can have a periodicity, there will appear (quasi-)periodic functions under transformations of moduli of the extra dimensions in low energy scales. Such a periodic property can lead to a UV completion of so-called multi-natural inflation model where inflaton potential consists of a sum of multiple sinusoidal functions with a decay constant smaller than the Planck scale. As an illustration, we construct a SUSY breaking model, and then show that such an inflaton potential can be generated by a sum of world sheet instantons in intersecting brane models on extra dimensions containing orbifold. We show also predictions of cosmic observables by numerical analyzes.

Authors:
 [1];  [2]
  1. Department of Physics, Keio University, Kanagawa 223-8522 (Japan)
  2. Department of Physics, Waseda University, Tokyo 169-8555 (Japan)
Publication Date:
OSTI Identifier:
22676117
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2017; Journal Issue: 07; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; BRANES; COMPACTIFICATION; FORECASTING; INFLATIONARY UNIVERSE; INFLATONS; INSTANTONS; M-THEORY; PARTICLE DECAY; PERIODICITY; SUPERGRAVITY; SUPERSYMMETRY; SYMMETRY BREAKING; TRANSFORMATIONS

Citation Formats

Higaki, Tetsutaro, and Tatsuta, Yoshiyuki, E-mail: thigaki@rk.phys.keio.ac.jp, E-mail: y_tatsuta@akane.waseda.jp. Inflation from periodic extra dimensions. United States: N. p., 2017. Web. doi:10.1088/1475-7516/2017/07/011.
Higaki, Tetsutaro, & Tatsuta, Yoshiyuki, E-mail: thigaki@rk.phys.keio.ac.jp, E-mail: y_tatsuta@akane.waseda.jp. Inflation from periodic extra dimensions. United States. doi:10.1088/1475-7516/2017/07/011.
Higaki, Tetsutaro, and Tatsuta, Yoshiyuki, E-mail: thigaki@rk.phys.keio.ac.jp, E-mail: y_tatsuta@akane.waseda.jp. Sat . "Inflation from periodic extra dimensions". United States. doi:10.1088/1475-7516/2017/07/011.
@article{osti_22676117,
title = {Inflation from periodic extra dimensions},
author = {Higaki, Tetsutaro and Tatsuta, Yoshiyuki, E-mail: thigaki@rk.phys.keio.ac.jp, E-mail: y_tatsuta@akane.waseda.jp},
abstractNote = {We discuss a realization of a small field inflation based on string inspired supergravities. In theories accompanying extra dimensions, compactification of them with small radii is required for realistic situations. Since the extra dimension can have a periodicity, there will appear (quasi-)periodic functions under transformations of moduli of the extra dimensions in low energy scales. Such a periodic property can lead to a UV completion of so-called multi-natural inflation model where inflaton potential consists of a sum of multiple sinusoidal functions with a decay constant smaller than the Planck scale. As an illustration, we construct a SUSY breaking model, and then show that such an inflaton potential can be generated by a sum of world sheet instantons in intersecting brane models on extra dimensions containing orbifold. We show also predictions of cosmic observables by numerical analyzes.},
doi = {10.1088/1475-7516/2017/07/011},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 07,
volume = 2017,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}