Inflation with a graceful exit and entrance driven by Hawking radiation
- We present a model for cosmological inflation which has a natural "turn on'' and a natural "turn off'' mechanism. In our model inflation is driven by the Hawking-like radiation that occurs in Friedmann-Robertson-Walker (FRW) space-time. This Hawking-like radiation results in an effective negative pressure "fluid'' which leads to a rapid period of expansion in the very early Universe. As the Universe expands the FRW Hawking temperature decreases and the inflationary expansion turns off and makes a natural transition to the power-law expansion of a radiation dominated universe. The turn on mechanism is more speculative, but is based on the common hypothesis that in a quantum theory of gravity at very high temperatures/high densities Hawking radiation will stop. Applying this speculation to the very early Universe implies that the Hawking-like radiation of the FRW space-time will be turned off and therefore the inflation driven by this radiation will turn off.
Verfasserangaben: | Sujoy Kumar Modak, Douglas Singleton |
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DOI: | https://doi.org/10.1103/PhysRevD.86.123515 |
ISSN: | 1550-7998 |
Titel des übergeordneten Werks (Englisch): | Physical review : D, Particles, fields, gravitation, and cosmology |
Verlag: | American Physical Society |
Verlagsort: | College Park |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Jahr der Erstveröffentlichung: | 2012 |
Erscheinungsjahr: | 2012 |
Datum der Freischaltung: | 26.03.2017 |
Band: | 86 |
Ausgabe: | 12 |
Seitenanzahl: | 9 |
Fördernde Institution: | DAAD |
Organisationseinheiten: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
Peer Review: | Referiert |