Built on

H. A. Weldon, Phys. Rev. D 28
Original
1934
Earlier work this paper cites.
A. A. Starobinsky, Phys. Lett. B 91
1982
Earlier work this paper cites.
A. D. Linde, Phys. Lett. B 129
1983
Earlier work this paper cites.
I. G. Moss, Phys. Lett. B 154
1985
Earlier work this paper cites.
J. Yokoyama and K. -i. Maeda, Phys. Lett. B 207
1988
Earlier work this paper cites.
G. R. Dvali, Q. Shafi and R. K. Schaefer, Phys. Rev. Lett. 73
1994
Earlier work this paper cites.
A. Berera and L. -Z. Fang, Phys. Rev. Lett. 74
1995
Earlier work this paper cites.
M. Yamaguchi and J. Yokoyama, Phys. Rev. D 56
1997
Earlier work this paper cites.
D. H. Lyth, Phys. Rev. Lett. 78
1997
Earlier work this paper cites.
This model overcomes the concerns raised by thermal corrections when m χ ≪ T m_{\chi}\ll T as initially discussed in A. Berera, M. Gleiser and R. O. Ramos, Phys. Rev. D 58
1999
Earlier work this paper cites.
A. Berera, Nucl. Phys. B 585
2000
Earlier work this paper cites.
A. Berera and R. O. Ramos, Phys. Lett. B 567
2003
Earlier work this paper cites.

Similar

L. M. Hall, I. G. Moss and A. Berera, Phys. Rev. D 69
2004
Cited alongside, same era.
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2006
Cited alongside, same era.
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2007
Cited alongside, same era.
J. C. Bueno Sanchez, M. Bastero-Gil, A. Berera and K. Dimopoulos, Phys. Rev. D 77
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2008
Cited alongside, same era.
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Cited alongside, same era.
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Original

Then

S. Bartrum, A. Berera and J. G. Rosa, Phys. Rev. D 86
Original
2012
Later among the works it cites.
M. Bastero-Gil, A. Berera, R. O. Ramos and J. G. Rosa, Phys. Lett. B 712
Original
2012
Later among the works it cites.
S. J. Landau, C. G. Scoccola and D. Sudarsky, Phys. Rev. D 85
Original
2012
Later among the works it cites.
M. Bastero-Gil, A. Berera and R. O. Ramos, JCAP 1109
Original
2013
Closest in time.
R. O. Ramos and L. A. da Silva, JCAP 1303
Original
2013
Closest in time.

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2013

The importance of being warm (during inflation)

Bartrum, Sam, Bastero-Gil, Mar, Berera, Arjun et al.

Understand

The amplitude of primordial curvature perturbations is enhanced when a radiation bath at a temperature T>H is sustained during inflation by dissipative particle production, which is particularly significant when a non-trivial statistical ensemble of inflaton fluctuations is also maintained.

Since gravitational modes are oblivious to dissipative dynamics, this generically lowers the tensor-to-scalar ratio and yields a modified consistency relation for warm inflation, as well as changing the tilt of the scalar spectrum.
We show that this alters the landscape of observationally allowed inflationary models, with for example the quartic chaotic potential being in very good agreement with the Planck results for nearly-thermal inflaton fluctuations, whilst essentially ruled out for an underlying vacuum state.
We also discuss other simple models that are in agreement with the Planck data within a renormalizable model of warm inflation.

Built on

H. A. Weldon, Phys. Rev. D 28
Original
1934
Earlier work this paper cites.
A. A. Starobinsky, Phys. Lett. B 91
1982
Earlier work this paper cites.
A. D. Linde, Phys. Lett. B 129
1983
Earlier work this paper cites.
I. G. Moss, Phys. Lett. B 154
1985
Earlier work this paper cites.
J. Yokoyama and K. -i. Maeda, Phys. Lett. B 207
1988
Earlier work this paper cites.
G. R. Dvali, Q. Shafi and R. K. Schaefer, Phys. Rev. Lett. 73
1994
Earlier work this paper cites.
A. Berera and L. -Z. Fang, Phys. Rev. Lett. 74
1995
Earlier work this paper cites.
M. Yamaguchi and J. Yokoyama, Phys. Rev. D 56
1997
Earlier work this paper cites.
D. H. Lyth, Phys. Rev. Lett. 78
1997
Earlier work this paper cites.
This model overcomes the concerns raised by thermal corrections when m χ ≪ T m_{\chi}\ll T as initially discussed in A. Berera, M. Gleiser and R. O. Ramos, Phys. Rev. D 58
1999
Earlier work this paper cites.
A. Berera, Nucl. Phys. B 585
2000
Earlier work this paper cites.
A. Berera and R. O. Ramos, Phys. Lett. B 567
2003
Earlier work this paper cites.

Similar

L. M. Hall, I. G. Moss and A. Berera, Phys. Rev. D 69
2004
Cited alongside, same era.
K. Bhattacharya, S. Mohanty and R. Rangarajan, Phys. Rev. Lett. 96
2006
Cited alongside, same era.
I. G. Moss and C. Xiong, JCAP 0704
2007
Cited alongside, same era.
J. C. Bueno Sanchez, M. Bastero-Gil, A. Berera and K. Dimopoulos, Phys. Rev. D 77
Original
2008
Cited alongside, same era.
A. Berera, I. G. Moss and R. O. Ramos, Rept. Prog. Phys. 72
Original
2009
Cited alongside, same era.
C. Graham and I. G. Moss, JCAP 0907
Original