Chronology Protection in AdS/CFT

Details Chronology Protection in AdS/CFT Chronology Protection in AdS/CFT

2006-02-28

arxiv.org/abs/hep-th/0602293v1

Fortsch.Phys. 54 (2006) 317-322

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 7 figures, contribution to the proceedings of the RTN workshop "Constituents, Fundamental Forces and Symmetries of th

Scientific paper

10.1002/prop.200510277

We review the issue of chronology protection and show how string theory can solve it in the half BPS sector of AdS/CFT. According to the LLM prescription, half BPS excitations of AdS_5 x S^5 geometries in type IIB string theory can be mapped into free fermion configurations. We show that unitarity of the theory describing these fermions is intimately related to the protection of the chronology in the dual geometries.

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