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arXiv · hep-th/0511270

Quantum Cosmology Aspects Of D3 Branes and Tachyon Dynamics

Anastasios Psinas
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Abstract

We investigate aspects of quantum cosmology in relation to string cosmology systems that are described in terms of the Dirac-Born-Infeld action. Using the Silverstein-Tong model, we analyze the Wheeler-DeWitt equation for the rolling scalar and gravity as well for $R\times{S^3}$ universe, by obtaining the wave functions for all dynamical degrees of freedom of the system. We show, that in some cases one can construct a time dependent version of the Wheeler-DeWitt (WDW) equation for the moduli field $ϕ$. We also explore in detail the minisuperspace description of the rolling tachyon when non-minimal gravity tachyon couplings are inserted into the tachyon action.

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Anastasios Psinas. 2006-09-25. Quantum Cosmology Aspects Of D3 Branes and Tachyon Dynamics. https://doi.org/10.1088/1126-6708%2F2006%2F04%2F042

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