
Habemus superstratum! A constructive proof of the existence of superstrataHabemus superstratum! A constructive proof of the existence of superstrataAA1188279X 
"/Bena, Iosif/"Bena, Iosif ,
"/Giusto, Stefano/"Giusto, Stefano ,
"/Russo, Rodolfo/"Russo, Rodolfo ,
"/Shigemori, Masaki/"Shigemori, Masaki ,
"/Warner, Nicholas P./"Warner, Nicholas P.
2015
(
5
)
20150521 , Springer Berlin Heidelberg
ISSN:10298479
NCID:AA1188279X
Description
We construct the first example of a superstratum: a class of smooth horizonless supergravity solutions that are parameterized by arbitrary continuous functions of (at least) two variables and have the same charges as the supersymmetric D1D5P black hole. We work in Type IIB string theory on T 4 or K3 and our solutions involve a subset of fields that can be described by a sixdimensional supergravity with two tensor multiplets. The solutions can thus be constructed using a linear structure, and we give an explicit recipe to start from a superposition of modes specified by an arbitrary function of two variables and impose regularity to obtain the full horizonless solutions in closed form. We also give the precise CFT description of these solutions and show that they are not dual to descendants of chiral primaries. They are thus much more general than all the known solutions whose CFT dual is precisely understood. Hence our construction represents a substantial step toward the ultimate goal of constructing the fully generic superstratum that can account for a finite fraction of the entropy of the threecharge black hole in the regime of parameters where the classical black hole solution exists.
FullText
http://repository.kulib.kyotou.ac.jp/dspace/bitstream/2433/200658/1/JHEP05%282015%29110.pdf