24 citations · 116 across the 14 of their papers we have counts for
14 papers
Holography of quarter-BPS AdS bubbles
Bogdan Ganchev, Anthony Houppe
We consider the quarter-BPS sector of the AdS/CFT duality, and provide a precise matching between specific CFT states and supergravity geometries beyond the linearized appr…
Waves on Mazes
Iosif Bena, Raphaël Dulac, Anthony Houppe +2
One way to describe the entropy of black holes comes from partitioning momentum charge across fractionated intersecting brane systems. Here we construct -BPS solutions…
Time-dependent microstrata in AdS3
Anthony Houppe
We use perturbation theory to construct a family of time-dependent microstrata: a set of non-extremal solutions of IIB supergravity asymptotic to . Our…
Maze Topiary in Supergravity
Iosif Bena, Anthony Houppe, Dimitrios Toulikas +1
We show that the supergravity solutions for 1/4-BPS intersecting systems of M2 and M5 branes are completely characterized by a single ``maze'' function that satisfies a non-linear…
Microstrata
Bogdan Ganchev, Stefano Giusto, Anthony Houppe +2
Microstrata are the non-extremal analogues of superstrata: they are smooth, non-extremal (non-BPS) solitonic solutions to IIB supergravity whose deep-throat limits approximate blac…
Themelia: the irreducible microstructure of black holes
Iosif Bena, Nejc Čeplak, Shaun D. Hampton +3
We argue that the fundamental "atomic objects" in string theory are themelia: extended objects that have 16 supersymmetries locally. We show that all existing smooth horizonless mi…
Solitonic Excitations in AdS2
Pierre Heidmann, Anthony Houppe
We construct large families of supergravity solutions that are asymptotic to AdS and terminate with a cap that is singular in two dimensions but smooth in higher dimensions. Th…
The (amazing) Super-Maze
Iosif Bena, Shaun D. Hampton, Anthony Houppe +2
The entropy of the three-charge NS5-F1-P black hole in Type IIA string theory comes from the breaking of F1 strings into little strings, which become independent mo…
Elliptical and Purely NS Superstrata
Bogdan Ganchev, Anthony Houppe, Nicholas P. Warner
We analyze the BPS equations in the ``superstratum sector'' of three-dimensional gauged supergravity. We obtain multi-parameter supersymmetric solutions that include elliptical def…
AdS holography for non-BPS geometries
Bogdan Ganchev, Stefano Giusto, Anthony Houppe +1
By using the approach introduced in arXiv:2107.09677 we construct non-BPS solutions of 6D supergravity coupled to two tensor multiplets as a perturbation of AdS$_3\times S^…
New Superstrata from Three-Dimensional Supergravity
Bogdan Ganchev, Anthony Houppe, Nicholas P. Warner
We find a two-parameter family of {\it generalized superstrata} that emerge as smooth, supersymmetric solutions in three-dimensional gauged supergravity coupled to additional scala…
Q-Balls Meet Fuzzballs: Non-BPS Microstate Geometries
Bogdan Ganchev, Anthony Houppe, Nicholas Warner
We construct a three-parameter family of non-extremal microstate geometries, or "microstrata," that are dual to states and deformations of the D1-D5 CFT. These families are non-ext…
Supersymmetry and Superstrata in Three Dimensions
Anthony Houppe, Nicholas P. Warner
We analyze the supersymmetry transformations of gauged supergravity coupled to extra hypermultiplets in three dimensions, and find large families of smooth BPS solutions th…
Delaying the Inevitable: Tidal Disruption in Microstate Geometries
Iosif Bena, Anthony Houppe, Nicholas P. Warner
Microstate geometries in string theory replace the black-hole horizon with a smooth geometric "cap" at the horizon scale. In geometries constructed using superstratum technology, t…