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...
保存先:
| 第一著者: | |
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| フォーマット: | Livre numérique |
| 言語: | Anglais |
| 出版事項: |
Tokyo :
Springer Japan
[20..].
Cham : Springer Nature |
| 版: | 1st ed. 2013. |
| シリーズ: | Springer Theses, Recognizing Outstanding Ph.D. Research
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| オンライン･アクセス: | Accès sur la plateforme de l'éditeur Accès sur la plateforme Istex Accès Université d'Orléans Accès INSA CVL |
| 注記: |
Archives Springer e-books (Licence nationale) Archives Springer e-books (Licence nationale) |
| Autres localisations: | Voir dans le Sudoc |
| Edition sous un autre format: | • Probing the early universe with the CMB scalar, vector and tensor bispectrum, doctoral thesis accepted by Nagoya University, Nagoya, Aichi, Japan, Maresuke Shiraishi, 2013, Tokyo [etc.], Springer, 1 vol. (XIII-180 p.), Springer theses, 4-431-54179-9 • Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum, Texte imprimé, 9784431547167 • Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum, Texte imprimé, 9784431541813 • Probing the early universe with the CMB scalar, vector and tensor bispectrum, doctoral thesis accepted by Nagoya University, Nagoya, Aichi, Japan, Maresuke Shiraishi, 2013, Tokyo [etc.], Springer, 1 vol. (XIII-180 p.), Springer theses, 4-431-54179-9 |
| 要約: | 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 perturbations and include the violation of the rotational or parity invariance. On the basis of our current works, this thesis provides the general formalism for the CMB bispectrum sourced by the non-Gaussianity in the scalar, vector and tensor-mode perturbations. Applying this formalism, we calculate the CMB bispectra from the two scalars and a graviton correlation and primordial magnetic fields, and then outline new constraints on these magnitudes. Furthermore, this formalism can be easily extended to the cases where the rotational or parity invariance is broken. We also compute the CMB bispectra from the scalar-mode non-Gaussianities with a preferred direction and the tensor-mode non-Gaussianities induced by the parity-violating Weyl cubic terms. Here, we show that these bispectra include unique signals, which any symmetry-invariant models can never produce |
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| 記述事項: | Archives Springer e-books (Licence nationale) Archives Springer e-books (Licence nationale) |
| ISBN: | 9784431541806 |
| ISSN: | 2190-5061 |
| アクセス: | Accès en ligne pour les établissements français bénéficiaires des licences nationales Accès soumis à abonnement pour tout autre établissement Conditions particulières de réutilisation pour les bénéficiaires des licences nationales. https://www.licencesnationales.fr/springer-nature-ebooks-contrat-licence-ln-2017 |