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hep-th2004
The Exact Geometry of a Kerr-Taub-NUT Solution of String Theory
Harald G. Svendsen
In this paper we study a solution of heterotic string theory corresponding to a rotating Kerr-Taub-NUT spacetime. It has an exact CFT description as a heterotic coset model, and a…
hep-th2004
An Exact String Theory Model of Closed Time-Like Curves and Cosmological Singularities
Clifford V. Johnson, Harald G. Svendsen
We study an exact model of string theory propagating in a space-time containing regions with closed time-like curves (CTCs) separated from a finite cosmological region bounded by a…