Non-Extremal D-instantons and the AdS/CFT Correspondence

Details Non-Extremal D-instantons and the AdS/CFT Correspondence Non-Extremal D-instantons and the AdS/CFT Correspondence

2005-10-06

arxiv.org/abs/hep-th/0510048v1

JHEP0601:061,2006

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 3 figures

Scientific paper

10.1088/1126-6708/2006/01/061

We investigate non-extremal D-instantons in an asymptotically $ AdS_5 \times S^5$ background and the role they play in the $ AdS_5 / CFT_4$ correspondence. We find that the holographic dual operators of non-extremal D-instanton configurations do not correspond to self-dual Yang-Mills instantons, and we compute explicitly the deviation from self-duality. Furthermore, a class of non-extremal D-instantons yield Euclidean axionic wormhole solutions with two asymptotic boundaries. After Wick rotating, this provides a playground for investigating holography in the presence of cosmological singularities in a closed universe.

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