R-Invariant Topological Inflation | Zendy

K.-I. Izawa | Zendy; Masahiro Kawasaki | Zendy; T. Yanagida | Zendy

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R-Invariant Topological Inflation

Author(s) -

K.-I. Izawa,

Masahiro Kawasaki,

T. Yanagida

Publication year - 1999

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.101.1129

Subject(s) - inflaton , physics , supergravity , inflation (cosmology) , cosmic microwave background , gravitino , scale invariance , particle physics , invariant (physics) , spectral density , theoretical physics , topology (electrical circuits) , anisotropy , mathematical physics , supersymmetry , quantum mechanics , mathematics , combinatorics , statistics

We propose a topological inflation model in the framework of supergravitywith $R$ invariance. This topological inflation model is not only free from theinitial value problem of the inflaton field but also gives low reheatingtemperature which is favored in supergravity since the overproduction ofgravitinos is avoided. Furthermore, the predicted spectrum of the densityfluctuations is generally tilted, which will be tested by future observationson CMB anisotropies and large scale structure of the universe.Comment: 7pages (RevTeX file

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