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Entropy production and curvature perturbation from dissipative curvatons · Around

2010

Entropy production and curvature perturbation from dissipative curvatons

Matsuda, Tomohiro

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Considering the curvaton field that follows dissipative slow-roll equation, we show that the field can lead to entropy production and generation of curvature perturbation after reheating.

Spectral index is calculated to discriminate warm and thermal scenarios of dissipative curvatons from the standard curvaton model.
In contrast to the original curvaton model, quadratic potential is not needed in the dissipative scenario, since the growth in the oscillating period is not essential for the model.

Built on

T. Matsuda, “Hybrid Curvatons from Broken Symmetry,” JHEP 0709
Original
1948
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M. Morikawa and M. Sasaki, “Entropy Production In The Inflationary Universe,” Prog. Theor. Phys. 72
1984
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D. H. Lyth and E. D. Stewart, “Thermal Inflation And The Moduli Problem,” Phys. Rev. D 53
1987
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J. Wess and J. Bagger, “Supersymmetry and supergravity,” Princeton, USA: Univ. Pr. (1992) 259 p
1992
Earlier work this paper cites.
T. Matsuda, “Evolution of curvature perturbation in generalized gravity theories,” Class. Quant. Grav. 26
Original
1998
Earlier work this paper cites.
L. M. H. Hall, I. G. Moss and A. Berera, “Scalar perturbation spectra from warm inflation,” Phys. Rev. D 69
2000
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A. D. Linde and V. F. Mukhanov, “Nongaussian isocurvature perturbations from inflation,” Phys. Rev. D 56
2002
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K. Koyama and J. Soda, “Baryon isocurvature perturbation in the Affleck-Dine baryogenesis,” Phys. Rev. Lett. 82
Original
2002
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A. Berera and R. O. Ramos, “Dynamics of interacting scalar fields in expanding space-time,” Phys. Rev. D 71
2003
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K. Dimopoulos, G. Lazarides, D. Lyth and R. Ruiz de Austri, “Curvaton dynamics,” Phys. Rev. D 68
2003
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Similar

A. Berera and R. O. Ramos, “Construction of a robust warm inflation mechanism,” Phys. Lett. B 567
Original
2003
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D. H. Lyth, C. Ungarelli and D. Wands, “The primordial density perturbation in the curvaton scenario,” Phys. Rev. D 67
2004
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T. Matsuda, “Evolution of the curvature perturbations during warm inflation,” JCAP 0906
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2004
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F. Bernardeau, L. Kofman and J. P. Uzan, “Modulated fluctuations from hybrid inflation,” Phys. Rev. D 70
2004
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A. Berera, M. Gleiser and R. O. Ramos, “Strong dissipative behavior in quantum field theory,” Phys. Rev. D 58
2005
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Then

T. Matsuda, “Elliptic inflation: Generating the curvature perturbation without slow-roll,” JCAP 0609
2006
Later among the works it cites.
M. Bastero-Gil and A. Berera, “Warm inflation dynamics in the low temperature regime,” Phys. Rev. D 76
2007
Later among the works it cites.
E. W. Kolb, A. Riotto and A. Vallinotto, “Curvature perturbations from broken symmetries,” Phys. Rev. D 71
Original
2007
Later among the works it cites.
V. N. Senoguz and Q. Shafi, “Chaotic inflation, radiative corrections and precision cosmology,” Phys. Lett. B 668
Original
2008
Later among the works it cites.
D. H. Lyth, “Can the curvaton paradigm accommodate a low inflation scale,” Phys. Lett. B 579
Original
2008
Later among the works it cites.

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I. D. Lawrie, “Friction in inflaton equations of motion,” Phys. Rev. D 66

2005

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T. Matsuda, “Topological curvatons,” Phys. Rev. D 72

2005

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D. H. Lyth, “Generating the curvature perturbation at the end of inflation,” JCAP 0511

2005

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A. Berera, “Warm Inflation,” Phys. Rev. Lett. 75

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2006

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I. G. Moss and C. Xiong, “Dissipation coefficients for supersymmetric inflatonary models,” [arXiv:hep-ph/0603266]

Cited in the paper.

R. Allahverdi and A. Mazumdar, “Affleck-Dine condensate, late thermalization and the gravitino problem,” Phys. Rev. D 78

2008

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T. Matsuda, “Cosmological perturbations from an inhomogeneous phase transition,” Class. Quant. Grav. 26

2009

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M. Kawasaki, T. Takahashi and S. Yokoyama, “Density Fluctuations in Thermal Inflation and Non-Gaussianity,” JCAP 0912

2009

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T. Matsuda, “Remote Inflation as hybrid-like sneutrino/MSSM inflation,” arXiv:0905.4328 [hep-ph]; T. Matsuda, “Remote Inflation: Hybrid-like inflation without hybrid-type potential,” JCAP 0907

2009

Later among the works it cites.