Chronology protection in stationary 3D spacetimes

Details Chronology protection in stationary 3D spacetimes Chronology protection in stationary 3D spacetimes

Feb 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012jphcs.343a2099r&link_type=abstract

Journal of Physics: Conference Series, Volume 343, Issue 1, pp. 012099 (2012).

Physics

Scientific paper

We address chronology protection in stationary, rotationally symmetric spacetimes in 2+1 dimensional gravity, focusing on the case of negative cosmological constant. We show that, if such spacetimes contain closed timelike curves, they belong to one of the following two classes: (i) bad asymptotics: the boundary itself contains closed timelike curves, or (ii) unphysical stress tensor in the bulk: the matter stress tensor violates the null energy condition. We illustrate these properties in a class of examples involving rotating dust in anti-de Sitter space and comment on the use of the AdS/CFT correspondence to study chronology protection.

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