Causally pathological spacetimes are physically relevant

Details Causally pathological spacetimes are physically relevant Causally pathological spacetimes are physically relevant

2005-04-04

arxiv.org/abs/gr-qc/0504013v1

Int.J.Mod.Phys. D14 (2005) 2227-2232

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Latex, 5 pages, 1 figure. Submitted for GRF essay competition

Scientific paper

We argue that in the context of string theory, the usual restriction to
globally hyperbolic spacetimes should be considerably relaxed. We exhibit an
example of a spacetime which only satisfies the causal condition, and so is
arbitrarily close to admitting closed causal curves, but which has a
well-behaved dual description, free of paradoxes.

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