Multifield reheating after modular j-inflation
In the inflationary framework of cosmology the initial phase of rapid expansion has to be followed by a reheating stage, which is envisioned to end in a radiation dominated big bang. Key parameters that characterize this big bang state are the temperature at the end of the reheating stage and the ba...
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Elsevier
2018-07-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269318303599 |
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doaj-3eca95ed3542447fafffbb598f0e7e1f2020-11-24T22:09:47ZengElsevierPhysics Letters B0370-26932018-07-01782193197Multifield reheating after modular j-inflationRolf Schimmrigk0Dept. of Physics, Indiana University South Bend, Mishawaka Ave., South Bend, IN 46634, United States of AmericaIn the inflationary framework of cosmology the initial phase of rapid expansion has to be followed by a reheating stage, which is envisioned to end in a radiation dominated big bang. Key parameters that characterize this big bang state are the temperature at the end of the reheating stage and the baryon asymmetry. For general interacting theories these parameters are difficult to obtain analytically because of the involved structure of the potential. In this paper multifield reheating is considered for interacting theories in which the inflaton trajectory is weakly curved. This scenario is realized in the model of j-inflation, a particular example of modular inflation, allowing an estimate of the reheat temperature.http://www.sciencedirect.com/science/article/pii/S0370269318303599 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Rolf Schimmrigk |
| spellingShingle |
Rolf Schimmrigk Multifield reheating after modular j-inflation Physics Letters B |
| author_facet |
Rolf Schimmrigk |
| author_sort |
Rolf Schimmrigk |
| title |
Multifield reheating after modular j-inflation |
| title_short |
Multifield reheating after modular j-inflation |
| title_full |
Multifield reheating after modular j-inflation |
| title_fullStr |
Multifield reheating after modular j-inflation |
| title_full_unstemmed |
Multifield reheating after modular j-inflation |
| title_sort |
multifield reheating after modular j-inflation |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2018-07-01 |
| description |
In the inflationary framework of cosmology the initial phase of rapid expansion has to be followed by a reheating stage, which is envisioned to end in a radiation dominated big bang. Key parameters that characterize this big bang state are the temperature at the end of the reheating stage and the baryon asymmetry. For general interacting theories these parameters are difficult to obtain analytically because of the involved structure of the potential. In this paper multifield reheating is considered for interacting theories in which the inflaton trajectory is weakly curved. This scenario is realized in the model of j-inflation, a particular example of modular inflation, allowing an estimate of the reheat temperature. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269318303599 |
| work_keys_str_mv |
AT rolfschimmrigk multifieldreheatingaftermodularjinflation |
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