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Brane gases in the early universe: thermodynamics and cosmology
Journal of Cosmology and Astroparticle Physics
We consider the thermodynamic and cosmological properties of brane gases in the early universe. Working in the low energy limit of M-theory we assume the universe is a homogeneous but anisotropic 10-torus containing wrapped 2-branes and a supergravity gas. We describe the thermodynamics of this system and estimate a Hagedorn temperature associated with excitations on the branes. We investigate the cross-section for production of branes from the thermal bath and derive Boltzmann equationsdoi:10.1088/1475-7516/2004/01/006 fatcat:cd6vs7fionhahcljvcqzh5qvj4