Cosmological Creation of D-branes and anti-D-branes

Details Cosmological Creation of D-branes and anti-D-branes Cosmological Creation of D-branes and anti-D-branes

2002-02-21

arxiv.org/abs/hep-th/0202148v3

JHEP 0203 (2002) 056

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 5 eps figures; v2 more references added; v3 section 4 slightly improved

Scientific paper

10.1088/1126-6708/2002/03/056

We argue that the early universe may be described by an initial state of space-filling branes and anti-branes. At high temperature this system is stable. At low temperature tachyons appear and lead to a phase transition, dynamics, and the creation of D-branes. These branes are cosmologically produced in a generic fashion by the Kibble mechanism. From an entropic point of view, the formation of lower dimensional branes is preferred and $D3$ brane-worlds are exponentially more likely to form than higher dimensional branes. Virtually any brane configuration can be created from such phase transitions by adjusting the tachyon profile. A lower bound on the number defects produced is: one D-brane per Hubble volume.

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