D-Brane Potentials from Multi-Trace Deformations in AdS/CFT

Details D-Brane Potentials from Multi-Trace Deformations in AdS/CFT D-Brane Potentials from Multi-Trace Deformations in AdS/CFT

2009-07-05

arxiv.org/abs/0907.0889v4

JHEP 0908:112,2009

Physics

High Energy Physics

High Energy Physics - Theory

26 pages, 3 figures, v4: a few typos fixed.

Scientific paper

10.1088/1126-6708/2009/08/112

It is known that certain AdS boundary conditions allow smooth initial data to evolve into a big crunch. To study this type of cosmological singularity, one can use the dual quantum field theory, where the non-standard boundary conditions are reflected by the presence of a multi-trace potential unbounded below. For specific AdS_4 and AdS_5 models, we provide a D-brane (or M-brane) interpretation of the unbounded potential. Using probe brane computations, we show that the AdS boundary conditions of interest cause spherical branes to be pushed to the boundary of AdS in finite time, and that the corresponding potential agrees with the multi-trace deformation of the dual field theory. Systems with expanding spherical D3-branes are related to big crunch supergravity solutions by a phenomenon similar to geometric transition.

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