Matrix Membrane Big Bangs and D-brane Production

dc.creatorDas, Sumit R.
dc.creatorMichelson, Jeremy
dc.date2006-02-10
dc.date2006-04-14
dc.date.accessioned2026-07-07T10:45:55Z
dc.date.available2026-07-07T10:45:55Z
dc.descriptionWe construct Matrix Membrane theory in pp wave backgrounds that have a null linear dilaton in Type IIB string theory. Such backgrounds can serve as toy models of big bang cosmologies. At late times only abelian degrees of freedom survive, and if the Kaluza-Klein modes along one of the directions of the membrane decouple, standard perturbative strings emerge. Near the ``big bang'', non-abelian configurations of fuzzy ellipsoids are present, as in the Type IIA theories. A generic configuration of these shrink to zero volume at late times. However, the Kaluza Klein modes (which can be thought of as states of (p,q) strings in the original IIB theory) can be generically produced in pairs in both pp wave and flat backgrounds in the presence of time dependence. Indeed, if we require that at late times the theory evolves to the perturbative string vacuum, these modes must be prepared in a squeezed state with a thermal distribution at early times.
dc.description17 pages REVTeX and AMSLaTeX with 1 black and white figure. v2: Typos corrected and references added. A gratuitously colour version of the figure can downloaded from http://www.pa.uky.edu/~jeremy/colour_figs/
dc.identifierhttps://arxiv.org/abs/hep-th/0602099
dc.identifierhttp://arxiv.org/abs/hep-th/0602099
dc.identifierPhys.Rev.D73:126006,2006
dc.identifierdoi:10.1103/PhysRevD.73.126006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183064
dc.subjectHigh Energy Physics - Theory
dc.titleMatrix Membrane Big Bangs and D-brane Production
dc.typetext

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