Axions and the graceful exit problem in string cosmology

Nemanja Kaloper; Richard Madden; Keith A Olive

doi:10.1016/0370-2693(95)01577-9

Axions and the graceful exit problem in string cosmology

Nemanja Kaloper, Richard Madden, Keith A Olive

Physics and Astronomy (Twin Cities)

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54 Scopus citations

Abstract

We reexamine the graceful exit problem in the Pre-Big-Bang inflationary scenario. The dilaton-gravity action is generalized by adding the axion and a general axion/dilaton potential. We provide a phase space analysis of the dynamics which leads us to extend the previous no-go theorem and rule out the branch change necessary for graceful exit in this context.

Original language	English (US)
Pages (from-to)	34-40
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	371
Issue number	1-2
DOIs	https://doi.org/10.1016/0370-2693(95)01577-9
State	Published - Mar 21 1996

Bibliographical note

Funding Information:
We would like to thank M. Gasperini, R. Khuri, E. Kiritsis, and G. Veneziano for helpful conversations. This work was supportedi n part by DOE grant DE-FG02-94ER40823, and in part by NSERC of Canada. NK was also supportedi n part by an NSERC postdoctoral fellowship.

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AU - Madden, Richard

AU - Olive, Keith A

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Axions and the graceful exit problem in string cosmology

Abstract

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