1997/09/26 by A. A. Saharian, Aram A. Saharian, Saharian, Aram A. · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9709188
24 pages, Latex, 2 figures included
arxiv created 1997/09/26 · arxiv updated 2009/11/30
We analyze the problem of graceful exit from superinflationary pre-big bang phase of string cosmology within the context of lowest-order string effective action. The previous no go theorems are generalized for the case when higher genus terms of general form and additional matter fields are included. It is shown that the choice of the E-frame essentially simplifies the consideration. For the example of pure gravi-dilaton case the comparison of E-frame and string frame approaches, based on phase space analysis, is carried out.