Non-BPS floating branes and bubbling geometries

Abstract

We derive a non-BPS linear ansatz using the charged Weyl formalism in string and M-theory backgrounds. Generic solutions are static and axially-symmetric with an arbitrary number of non-BPS sources corresponding to various brane, momentum and KKm charges. Regular sources are either four-charge non-extremal black holes or smooth non-BPS bubbles. We construct several families such as chains of non-extremal black holes or smooth non-BPS bubbling geometries and study their physics. The smooth horizonless geometries can have the same mass and charges as non-extremal black holes. Furthermore, we find examples that scale towards the four-charge BPS black hole when the non-BPS parameters are taken to be small, but the horizon is smoothly resolved by adding a small amount of non-extremality.

Resolving Black-Hole Microstructure with New Momentum Carriers

“…Thus, the solutions we have constructed provide a simple way to access dynamics of compactification tori, while also preserving the isotropy of the T 4 . We therefore expect the D0-D4 fluctuations to provide qualitatively similar results to analyzing more complicated excitations on the T 4 of IIA or IIB supergravity [35,76,77].…”

Linearizing the BPS Equations with Vector and Tensor Multiplets

“…The results in [36] and the techniques developed here suggest that dynamics of the internal dimensions are also essential to resolving degenerate corners of the moduli space of IIB superstrata. There has also been some remarkable progress in constructing non-extremal microstate geometries using the charged Weyl formalism to solve the full bosonic equations of motion [59][60][61][62][63]. These new non-BPS microstate geometries make essential use of topological transitions and "bubbles" on the compactification manifolds.…”

Non-BPS bubbling geometries in AdS3

“…An intriguing question in cosmological physics is the existence of gravitational solitons that can describe various dark and ultra-compact objects which, from afar, are indistinguishable from black holes in general relativity. Recently, the authors have developed a framework for constructing and studying large classes of gravitational solitons that are described by smooth horizonless solutions with arbitrary mass and charges in supergravity [1][2][3][4][5][6]. These are thought of as coherent states of quantum gravity that admit classical descriptions.…”

“…In the former case, only a few atypical sets of non-BPS smooth geometries [17][18][19][20][21][22][23] were known until recently. 2 Some promising breakthroughs have been achieved first from a consistent S 3 truncation of six-dimensional supergravity [26][27][28] and second from the "charged Weyl formalism" established by the authors [1][2][3][4][5][6]. In all of these solutions, only a small subset admits field theory descriptions in the context of AdS 3 /CFT 2 in type IIB supergravity: the JMaRT geometry [29] and the microstrata [30].…”

“…This article contributes to bridging the gap towards non-BPS holography. The initial goal is to adapt the formalism of [1][2][3][4][5][6] for a systematic construction of regular non-BPS geometries that are asymptotic to AdS D × C and that can be considered as non-BPS deformations on known BPS backgrounds. These deformations regularly backreact by inducing geometric transitions where compact directions in C degenerate in the spacetime.…”