Closed strings in Misner space: a toy model for a Big Bounce ?

Details Closed strings in Misner space: a toy model for a Big Bounce ? Closed strings in Misner space: a toy model for a Big Bounce ?

2005-01-19

arxiv.org/abs/hep-th/0501145v2

Proceedings of the NATO ASI and EC Summer School "String Theory: from gauge interactions to cosmology", Cargese, France, June

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 3 figures, to appear in the Proceedings of the NATO ASI and EC Summer School ``String Theory: from Gauge Interaction

Scientific paper

Misner space, also known as the Lorentzian orbifold $R^{1,1}/boost$, is one of the simplest examples of a cosmological singularity in string theory. In this lecture, we review the semi-classical propagation of closed strings in this background, with a particular emphasis on the twisted sectors of the orbifold. Tree-level scattering amplitudes and the one-loop vacuum amplitude are also discussed.

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