2012 Fiscal Year Final Research Report
Inflationary Universe based on superstring theory
| Project/Area Number |
21740187
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Tokyo Institute of Technology (2010-2012)
Aoyama Gakuin University (2009) |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2012
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| Keywords | 宇宙物理(理論) |
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| Research Abstract |
We considered inflation models, in which an inflaton has a non-trivial kinetic term and/or a non-minimal coupling to gravity, as suggested by superstring theory. We gave the formulae of powerspectra and bispectra of primordial density and tensor perturbations. We also discussed the case that a light field other than an inflaton is responsible for primordial density perturbations.
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