This work of JdB was supported in part by the Foundation of Fundamental Research on Matter (FOM) and by an NWO Spinoza grant. The work of MS was
supported in part by Grant-in-Aid for Young Scientists (B) 24740159 from the Japan Society for the Promotion of Science
(JSPS)

A Almheiri

A Dabholkar

A Sen

A Strominger

B Bates

BC Palmer

BE Niehoff

CG Callan

D Bak

D Harlow

D Mateos

F Denef

GT Horowitz

GW Gibbons

I Bena

I Kanitscheider

Iosif Bena

J Boer de

JC Breckenridge

JM Maldacena

JP Gauntlett

JR David

M Berkooz

M Shigemori

Masaki Shigemori

N Seiberg

Nicholas P. Warner

O Aharony

O Lunin

P Berglund

R Emparan

RC Myers

S Giusto

SD Mathur

SG Avery

SL Braunstein

T Damour

VS Rychkov

W Lerche

Journal of High Energy Physics

arXiv

35 pages, 3 figuresInternational audienceThere are, by now, several arguments that superstrata, which represent D1-D5-P bound states that depend upon arbitrary functions of two variables and that preserve four supersymmetries, exist in string theory, and that their gravitational back-reaction results in smooth horizonless solutions. In this paper we examine the shape and density modes of the superstratum and give strong evidence that the back-reacted supergravity solution allows for fluctuation modes whose quantization reproduces the entropy growth of black holes as a function of the charges. In particular, we argue that the shape modes of the superstratum that lie purely within the non-compact space-time directions account for at least $1/\sqrt{6}$ of the entropy of the D1-D5-P black hole and propose a way in which the rest of the entropy could be captured by superstratum fluctuations. We complete the picture by conjecturing a relationship between bound states of multiple superstrata and momentum excitations of different twisted sectors of the dual CFT

Bena, Iosif

Shigemori, Masaki

Warner, Nicholas P.

HAL-CEA

Black-Hole Entropy from Supergravity Superstrata States

Springer - Publisher Connector

Black-hole entropy from supergravity superstrata states

Bena, I

Shigemori, M

Warner, NP

Queen Mary Research Online

Crossref

There are, by now, several arguments that superstrata, which represent D1-D5-P bound states that depend upon arbitrary functions of two variables and that preserve four supersymmetries, exist in string theory, and that their gravitational back-reaction results in smooth horizonless solutions. In this paper we examine the shape and density modes of the superstratum and give strong evidence that the back-reacted supergravity solution allows for fluctuation modes whose quantization reproduces the entropy growth of black holes as a function of the charges. In particular, we argue that the shape modes of the superstratum that lie purely within the non-compact space-time directions account for at least 1/√6 of the entropy of the D1-D5-P black hole and propose a way in which the rest of the entropy could be captured by superstratum fluctuations. We complete the picture by conjecturing a relationship between bound states of multiple superstrata and momentum excitations of different twisted sectors of the dual CFT

Kyoto University Research Information Repository

Archive Ouverte en Sciences de l'Information et de la Communication

http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/196747/1/JHEP10%282014%29140.pdf

Black-hole entropy from supergravity superstrata states

Abstract

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HAL-CEA

Springer - Publisher Connector

Springer - Publisher Connector

Queen Mary Research Online

Crossref

Kyoto University Research Information Repository

Archive Ouverte en Sciences de l'Information et de la Communication