Causally pathological spacetimes are physically relevant

Abstract

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.

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

References in corpus (2)

• On lightcone string field theory from Super Yang-Mills and holography
• Causal inheritance in plane wave quotients

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