Bubble bag end: a bubbly resolution of curvature singularity

DOI10.1007/JHEP10(2021)165zbMATH Open1476.83015arXiv2107.13551OpenAlexW3210357241MaRDI QIDQ825782

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Publication date: 17 December 2021

Published in: (Search for Journal in Brave)

Abstract: We construct a family of smooth charged bubbling solitons in $mathbb{M}^{4}imes$T${}^2$, four-dimensional Minkowski with a two-torus. The solitons are characterized by a degeneration pattern of the torus along a line in $mathbb{M}^4$ defining a chain of topological cycles. They live in the same parameter regime as non-BPS non-extremal four-dimensional black holes, and are ultra-compact with sizes ranging from miscroscopic to macroscopic scales. The six-dimensional framework can be embedded in type IIB supergravity where the solitons are identified with geometric transitions of non-BPS D1-D5-KKm bound states. Interestingly, the geometries admit a minimal surface that smoothly opens up to a bubbly end of space. Away from the solitons, the solutions are indistinguishable from a new class of singular geometries. By taking a limit of large number of bubbles, the soliton geometries can be matched arbitrarily close to the singular spacetimes. This provides the first classical resolution of a curvature singularity beyond the framework of supersymmetry and supergravity by blowing up topological cycles wrapped by fluxes at the vicinity of the singularity.

Full work available at URL: https://arxiv.org/abs/2107.13551

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