91 citations · 738 across the 25 of their papers we have counts for
25 papers · 1 filter
Three-charge black holes from the worldsheet
Stefano Massai, Enrico Turetta
We consider the general asymptotically flat, doubly-rotating, three-charge black hole uplifted to a family of NS5-F1-P black brane solutions of Type IIB supergravity. We construct…
Cogito, ergo - strings: Supersymmetric ergoregions and their stringy excitations
Emil J. Martinec, Stefano Massai, David Turton
Supergravity solutions describing supersymmetric rotating bound states of NS fivebranes, fundamental strings and momentum can sometimes have an ergoregion but no horizon. In such s…
Revisiting corrections to heterotic two-charge black holes
Stefano Massai, Alejandro Ruipérez, Matteo Zatti
We find solutions of the heterotic string effective action describing the first-order corrections to two-charge black holes at finite temperature. Making explicit use of these…
A note on integrability loss in fuzzball geometries
Maxim Emelin, Stefano Massai
We study the dynamics of certain string configurations in a class of fivebrane supertube backgrounds. In the decoupling limit of the fivebranes, these solutions are known to admit…
On the BPS sector in AdS_3/CFT_2 Holography
Emil J. Martinec, Stefano Massai, David Turton
The BPS sector in AdS_3/CFT_2 duality has been fertile ground for the exploration of gauge/gravity duality, from the match between black hole entropy and the CFT elliptic genus to…
Stringy Structure at the BPS Bound
Emil J. Martinec, Stefano Massai, David Turton
We explore the stringy structure of 1/2-BPS bound states of NS fivebranes carrying momentum or fundamental string charge, in the decoupling limits leading to little string theory a…
Little Strings, Long Strings, and Fuzzballs
Emil J. Martinec, Stefano Massai, David Turton
At high energy densities, fivebranes are populated by a Hagedorn phase of so-called "little strings", whose statistical mechanics underlies black fivebrane thermodynamics. A partic…
String dynamics in NS5-F1-P geometries
Emil J. Martinec, Stefano Massai, David Turton
String theory dynamics on certain fivebrane supertube backgrounds is described by an exactly solvable null-gauged WZW model. We use this description to compute the spectrum of clos…
A note on T-folds and T3 fibrations
Ismail Achmed-Zade, Mark J. D. Hamilton, Dieter Lust +1
We study stringy modifications of -fibered manifolds, where the fiber undergoes a monodromy in the T-duality group. We determine the fibration data defining such T-folds from…
Non-geometric heterotic backgrounds and 6D SCFTs/LSTs
Anamaría Font, Iñaki García-Etxebarria, Dieter Lust +2
We study six-dimensional theories living on defects of non-geometric backgrounds of the and the heterotic strin…
String Theory of Supertubes
Emil J. Martinec, Stefano Massai
String theory on AdS3 backgrounds arises as an IR limit of Little String Theory on NS5-branes. A wide variety of holographic RG flows from the fivebrane theory in the UV to (orbifo…
Ubiquity of non-geometry in heterotic compactifications
Iñaki García-Etxebarria, Dieter Lust, Stefano Massai +1
We study the effect of quantum corrections on heterotic compactifications on elliptic fibrations away from the stable degeneration limit, elaborating on a recent observation by Mal…
Heterotic T-fects, 6D SCFTs, and F-Theory
Anamaría Font, Iñaki García-Etxebarria, Dieter Lust +2
We study the six-dimensional SCFTs living on defects of non-geometric heterotic backgrounds (T-fects) preserving a subgroup of . These config…
The monodromy of T-folds and T-fects
Dieter Lust, Stefano Massai, Valentí Vall Camell
We construct a class of codimension-2 solutions in supergravity that realize T-folds with arbitrary monodromy and we develop a geometric point of view in which…
Giant Tachyons in the Landscape
Iosif Bena, Mariana Graña, Stanislav Kuperstein +1
We study the dynamics of localized and fully backreacting anti-D3 branes at the tip of the Klebanov-Strassler geometry. We use a non-supersymmetric version of the Polchinski-Strass…
Metastability in Bubbling AdS Space
Stefano Massai, Giulio Pasini, Andrea Puhm
We study the dynamics of probe M5 branes with dissolved M2 charge in bubbling geometries with SO(4) x SO(4) symmetry. These solutions were constructed by Bena-Warner and Lin-Lunin-…
On Inflation and de Sitter in Non-Geometric String Backgrounds
Falk Hassler, Dieter Lust, Stefano Massai
We study the problem of obtaining de Sitter and inflationary vacua from dimensional reduction of double field theory (DFT) on nongeometric string backgrounds. In this context, we c…
Tachyonic Anti-M2 Branes
Iosif Bena, Mariana Graña, Stanislav Kuperstein +1
We study the dynamics of anti-M2 branes in a warped Stenzel solution with M2 charges dissolved in fluxes by taking into account their full backreaction on the geometry. The resulti…
Uplifting the baryonic branch: a test for backreacting anti-D3-branes
Anatoly Dymarsky, Stefano Massai
Placing D3 or anti-D3-branes at the tip of the Klebanov-Strassler background results in uplifting the baryonic branch of the moduli space of the dual field theory. In this paper we…
Polchinski-Strassler does not uplift Klebanov-Strassler
Iosif Bena, Mariana Grana, Stanislav Kuperstein +1
Anti-D3-branes at the tip of the Klebanov-Strassler solution with D3-charge dissolved in fluxes give rise, in the probe approximation, to a metastable state. The fully back-reacted…
Anti-D3's - Singular to the Bitter End
Iosif Bena, Mariana Grana, Stanislav Kuperstein +1
We study the full backreaction of anti-D3 branes smeared over the tip of the deformed conifold. Requiring the 5-form flux and warp factor at the tip to be that of anti-D3 branes, w…
A comment on anti-brane singularities in warped throats
Stefano Massai
We compute the imaginary self-dual (ISD) and imaginary anti-self-dual (IASD) fluxes for the Klebanov-Strassler background perturbed by a stack of p anti-D3 branes. We show that, at…
Metastable Vacua and the Backreacted Stenzel Geometry
Stefano Massai
We construct an M-theory background dual to the metastable state recently discussed by Klebanov and Pufu, which corresponds to placing a stack of anti-M2 branes at the tip of a war…
The backreaction of anti-D3 branes on the Klebanov-Strassler geometry
Iosif Bena, Gregory Giecold, Mariana Graña +2
We present the full numerical solution for the 15-dimensional space of linearized deformations of the Klebanov-Strassler background which preserve the SU(2) X SU(2) X Z_2 symmetrie…