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13 papers found.
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A rough end for smooth microstate geometries

Supersymmetric microstate geometries with five non-compact dimensions have recently been shown by Eperon, Reall, and Santos (ERS) to exhibit a non-linear instability featuring the growth of excitations at an “evanescent ergosurface” of infinite redshift. We argue that this growth may be treated as adiabatic evolution along a family of exactly supersymmetric solutions in the limit ...

(Non-adiabatic) string creation on nice slices in Schwarzschild black holes

Nice slices have played a pivotal role in the discussion of the black hole information paradox as they avoid regions of strong spacetime curvature and yet smoothly cut through the infalling matter and the outgoing Hawking radiation, thus, justifying the use of low energy field theory. To avoid information loss it has been argued recently, however, that local effective field theory ...

AdS3: the NHEK generation

It was argued in [1] that the five-dimensional near-horizon extremal Kerr (NHEK) geometry can be embedded in String Theory as the infrared region of an infinite family of non-supersymmetric geometries that have D1, D5, momentum and KK monopole charges. We show that there exists a method to embed these geometries into asymptotically-\( {\mathrm{AdS}}_3\times ...

Tunneling into microstate geometries: quantum effects stop gravitational collapse

Collapsing shells form horizons, and when the curvature is small classical general relativity is believed to describe this process arbitrarily well. On the other hand, quantum information theory based (fuzzball/firewall) arguments suggest the existence of some structure at the black hole horizon. This structure can only form if classical general relativity stops being the correct ...

Remarks on brane and antibrane dynamics

We develop the point of view that brane actions should be understood in the context of effective field theory, and that this is the correct way to treat classical as well as loop divergences. We illustrate this idea in a simple model. We then consider the implications for the dynamics of antibranes in flux backgrounds, focusing on the simplest case of a single antibrane. We argue ...

Metastability in bubbling AdS space

We study the dynamics of probe M5 branes with dissolved M2 charge in bubbling geometries with SO(4) × SO(4) symmetry. These solutions were constructed by Bena-Warner and Lin-Lunin-Maldacena and correspond to the vacua of the maximally supersymmetric mass-deformed M2 brane theory. We find that supersymmetric probe M2 branes polarize into M5 brane shells whose backreaction creates an ...

Journey to the center of the fuzzball

We study extremal 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, these geometries are best approximated by geometries with stringy sources, or by a free CFT. For non-zero angular momentum we find a regime where ...

Insane anti-Membranes?

The backreactions of anti-branes on a variety of supergravity backgrounds have been shown in a recent series of papers to be riled by some unexplained flux singularities. All of the situations studied so far involve backgrounds with (close to) AdS-asymptotics. It is the purpose of this work to study the backreaction of anti-M2 branes on a background exhibiting a different UV ...

Non-extremal black hole microstates: fuzzballs of fire or fuzzballs of fuzz?

Iosif Bena 0 Andrea Puhm 0 Bert Vercnocke 0 0 Institut de Physique Tehorique , CEA Saclay, 91191 Gif sur Yvette, France We construct the rst family of microstate geometries of near-extremal black

Unitarity and fuzzball complementarity: “Alice fuzzes but may not even know it!”

Steven G. Avery 2 Borun D. Chowdhury 0 Andrea Puhm 1 Open Access 0 Institute for Theoretical Physics, University of Amsterdam, Science Park 904 , Postbus 94485, 1090 GL Amsterdam, The Netherlands

Almost BPS but still not renormalized

A key feature of BPS multi-center solutions is that the equations controlling the positions of these centers are not renormalized as one goes from weak to strong coupling. In particular, this means that brane probes can capture the same information as the fully back-reacted supergravity solution. We investigate this non-renormalization property for non-supersymmetric, extremal ...

Metastable supertubes and non-extremal black hole microstates

Iosif Bena 0 Andrea Puhm 0 Bert Vercnocke 0 0 Institut de Physique Tehorique , CEA Saclay, 91191 Gif sur Yvette, France We study the dynamics of supertubes in smooth bubbling geometries with three

Counting charged massless states in the (0, 2) heterotic CFT/geometry connection

We use simple current techniques and their relation to orbifolds with discrete torsion for studying the (0, 2) CFT/ geometry duality with non-rational internal \( \mathcal{N} = 2 \) SCFTs. Explicit formulas for the charged spectra of heterotic SO(10) GUT models are computed in terms of their extended Poincaré polynomials and the complementary Poincaré polynomial which can be ...