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S. Hirai

4 papers hereh-index 560 citations35 works total

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author position
  • sole author2
  • first author2

Across the 4 of 4 papers where every author was matched, so the position is known.

fields
  • astro-ph3
  • hep-th1

identity via Semantic Scholar / OpenAlex

activity
20032007
collaborators
Showing hep-thShow all

1 paper · 1 filter

hep-th2003

Effect of Pre-inflation Conditions on Scalar and Tensor Perturbations in Inflation

Shiro Hirai

The effect of the initial conditions in inflation on scalar and tensor perturbations is investigated. Formulae for the power spectra of gravitational waves and curvature perturbati…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.