Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum

The non-Gaussianity in the primordial density fluctuations is a key feature to clarify the early Universe and it has been probed with the Cosmic Microwave Background (CMB) bispectrum. In recent years, we have treated the novel-type CMB bispectra, which originate from the vector- and tensor-mode pert...

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Bibliographic Details
Main Author: Shiraishi, Maresuke
Format: eBook
Language:English
Published: Tokyo Springer Japan 2013, 2013
Edition:1st ed. 2013
Series:Springer Theses, Recognizing Outstanding Ph.D. Research
Subjects:
Online Access:
Collection: Springer eBooks 2005- - Collection details see MPG.ReNa
Table of Contents:
  • Introduction
  • Fluctuations in the inflation
  • Fluctuations in cosmic microwave background radiation
  • Primordial non-Gaussianities
  • General formalism for the CMB bispectrum from primordial scalar, vector and tensor non-Gaussianities
  • CMB bispectrum Induced by the two scalars and a graviton correlator
  • Violation of the rotational invariance in the CMB bispectrum
  • Parity violation of gravitons in the CMB bispectrum
  • CMB bispectrum generated from primordial magnetic fields
  • Conclusion