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Synopsis
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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À propos de l?auteur
Dr. Maresuke Shiraishi
Department of Physics
Nagoya University
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Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum (Springer Theses)
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Probing the Early Universe With the CMB Scalar, Vector and Tensor Bispectrum
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Probing the Early Universe With the CMB Scalar, Vector and Tensor Bispectrum
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ISBN 13 : 9784431541790
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Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum (Hardcover)
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Hardcover. Etat : new. Hardcover. 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. 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. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. N° de réf. du vendeur 9784431541790
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Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum (Springer Theses)
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Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum
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ISBN 10 : 4431541799
ISBN 13 : 9784431541790
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Buch. Etat : Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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. 196 pp. Englisch. N° de réf. du vendeur 9784431541790
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Probing the Early Universe with the CMB Scalar, Vector and Tensor Bispectrum
Edité par
Springer Verlag, Japan, 2013
ISBN 10 : 4431541799
ISBN 13 : 9784431541790
Neuf
Couverture rigide
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Etat : New. This book shows that bispectra include unique signals that no symmetry-invariant models can produce. Computes CMB bispectra induced by scalar-mode non-Gaussianities with a preferred direction, and tensor-mode non-Gaussianities in parity-violating Weyl gravity. Series: Springer Theses. Num Pages: 193 pages, biography. BIC Classification: PGC; PHU. Category: (P) Professional & Vocational. Dimension: 235 x 155 x 17. Weight in Grams: 461. . 2013. Hardback. . . . . N° de réf. du vendeur V9784431541790
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Probing the Early Universe With the Cmb Scalar, Vector and Tensor Bispectrum
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Probing the Early Universe With the Cmb Scalar, Vector and Tensor Bispectrum
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Probing the Early Universe With the Cmb Scalar, Vector and Tensor Bispectrum
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