scholarly journals Graceful exit problem in warm inflation

2021 ◽  
Vol 103 (12) ◽  
Author(s):  
Suratna Das ◽  
Rudnei O. Ramos
Keyword(s):  
Warm Inflation ◽  
Exit Problem

scholarly journals On the effective Stefan-Boltzmann law and the thermodynamic origin of the initial radiation density in warm inflation

2018 ◽  
Vol 168 ◽  
pp. 06004 ◽  
Author(s):  
Yongwan Gim ◽  
Wontae Kim
Keyword(s):  
Energy Density ◽  
Radiation Energy ◽  
Scalar Perturbation ◽  
Radiation Energy Density ◽  
Warm Inflation ◽  
Exit Problem ◽  
Starting Point ◽  
Initial Radiation ◽  
Cosmological Scalar ◽  
Boltzmann Law

In this presentation, we are going to explain the thermodynamic origin of warm inflation scenarios by using the effetive Stefan-Boltzmann law. In the warm inflation scenarios, radiation always exists to avoid the graceful exit problem, for which the radiation energy density should be assumed to be finite at the starting point of the warm inflation. To find out the origin of the non-vanishing initial radiation energy density, we derive an effective Stefan-Boltzmann law by considering the non-vanishing trace of the total energy-momentum tensors. The effective Stefan-Boltzmann law successfully shows where the initial radiation energy density is thermodynamically originated from. And by using the above effective Stefan-Boltzmann law, we also study the cosmological scalar perturbation, and obtain the sufficient radiation energy density in order for GUT baryogenesis at the end of inflation. This proceeding is based on Ref. [1]

Stabilizations, crises and the “exit” problem – A theoretical model

2007 ◽  
Vol 29 (4) ◽  
pp. 876-890 ◽  
Author(s):  
Michael Bleaney ◽  
Marco Gundermann
Keyword(s):  
Theoretical Model ◽  
Exit Problem

scholarly journals Dynamics of polynomial Chaplygin gas warm inflation

2017 ◽  
Vol 77 (11) ◽  
Author(s):  
Abdul Jawad ◽  
Shahid Chaudhary ◽  
Nelson Videla
Keyword(s):  
Chaplygin Gas ◽  
Warm Inflation

scholarly journals Experiments on Critical Phenomena in a Noisy Exit Problem

1997 ◽  
Vol 79 (17) ◽  
pp. 3109-3112 ◽  
Author(s):  
D. G. Luchinsky ◽  
R. S. Maier ◽  
R. Mannella ◽  
P. V. E. McClintock ◽  
D. L. Stein
Keyword(s):  
Critical Phenomena ◽  
Exit Problem

scholarly journals Drowning: The Exit Problem

2014 ◽  
Vol 8 (1) ◽  
pp. 73-97 ◽  
Author(s):  
John Connolly ◽  
Keyword(s):  
Exit Problem

scholarly journals The Exit Problem for a Class of Density-Dependent Branching Systems

1994 ◽  
Vol 4 (4) ◽  
pp. 1188-1205 ◽  
Author(s):  
Fima C. Klebaner ◽  
Ofer Zeitouni
Keyword(s):  
Density Dependent ◽  
Exit Problem
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