Hagedorn inflation of D-branes

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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44 Pages; JHEP latex; includes 1 postscript figure

Scientific paper

10.1088/1126-6708/2001/01/039

We examine the cosmological effects of the Hagedorn phase in models where the observable universe is pictured as a D-brane. It is shown that, even in the absence of a cosmological constant, winding modes cause a negative `pressure' that can drive brane inflation of various types including both power law and exponential. We also find regimes in which the cosmology is stable but oscillating (a bouncing universe) with the Hagedorn phase softening the singular behavior associated with the collapse.

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