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arXiv · 1408.4798

Journey to the Center of the Fuzzball

Fang Chen·Ben Michel·Joseph Polchinski·Andrea Puhm
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Abstract

We study two-charge fuzzball geometries, with attention to the use of the proper duality frame. For zero angular momentum there is an onion-like structure, and the smooth D1-D5 geometries are not valid for typical states. Rather, they are best approximated by geometries with stringy sources, or by a free CFT. For non-zero angular momentum we find a regime where smooth fuzzball solutions are the correct description. Our analysis rests on the comparison of three radii: the typical fuzzball radius, the entropy radius determined by the microscopic theory, and the breakdown radius where the curvature becomes large. We attempt to draw more general lessons.

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Fang Chen, Ben Michel, Joseph Polchinski, Andrea Puhm. 2014-08-20. Journey to the Center of the Fuzzball. https://doi.org/10.1007/jhep02(2015)081

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