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Anti-brane singularities as red herrings

Anti-brane singularities as red herrings
Anti-brane singularities as red herrings
Unphysical 3-form flux singularities near anti-branes have been argued to get resolved in the classical supergravity regime when brane polarisation is properly taken into account. The only example that does not seem to fit this logic is the -brane because of a no-go theorem for well behaved supergravity solutions with negative D6 charge. In this paper we first review the existing results demonstrating how brane polarisation resolves singularities for -branes and then we improve on the description of the polarisation of -branes into KK5 dipoles. We argue that the meta-stable state carries exactly zero (anti-)D6 charge, which is the unique way around the no-go theorem. We then provide numerical evidence for well-behaved solutions that describe such meta-stable states.
1126-6708
Blåbäck, J.
8b6fd9e6-29b4-4bc6-8e35-2f922e106ac4
Gautason, F.F.
0c48d448-e092-48bf-a310-45862bd6fc5f
Ruipérez, A.
856e7a01-21a3-4997-ab11-840b5237b67a
Riet, T. Van
f82c77a1-9588-4814-b5eb-725d5dd77d58
Blåbäck, J.
8b6fd9e6-29b4-4bc6-8e35-2f922e106ac4
Gautason, F.F.
0c48d448-e092-48bf-a310-45862bd6fc5f
Ruipérez, A.
856e7a01-21a3-4997-ab11-840b5237b67a
Riet, T. Van
f82c77a1-9588-4814-b5eb-725d5dd77d58

Blåbäck, J., Gautason, F.F., Ruipérez, A. and Riet, T. Van (2019) Anti-brane singularities as red herrings. Journal of High Energy Physics, 2019, [125]. (doi:10.1007/jhep12(2019)125).

Record type: Article

Abstract

Unphysical 3-form flux singularities near anti-branes have been argued to get resolved in the classical supergravity regime when brane polarisation is properly taken into account. The only example that does not seem to fit this logic is the -brane because of a no-go theorem for well behaved supergravity solutions with negative D6 charge. In this paper we first review the existing results demonstrating how brane polarisation resolves singularities for -branes and then we improve on the description of the polarisation of -branes into KK5 dipoles. We argue that the meta-stable state carries exactly zero (anti-)D6 charge, which is the unique way around the no-go theorem. We then provide numerical evidence for well-behaved solutions that describe such meta-stable states.

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1907.05295v2 - Accepted Manuscript
Available under License Creative Commons Attribution.
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Accepted/In Press date: 5 December 2019
Published date: 17 December 2019

Identifiers

Local EPrints ID: 497313
URI: http://eprints.soton.ac.uk/id/eprint/497313
ISSN: 1126-6708
PURE UUID: 91e1259a-e556-4658-ba91-d8b82649296f
ORCID for F.F. Gautason: ORCID iD orcid.org/0000-0001-5811-0219

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Date deposited: 17 Jan 2025 18:09
Last modified: 08 Feb 2025 03:17

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Contributors

Author: J. Blåbäck
Author: F.F. Gautason ORCID iD
Author: A. Ruipérez
Author: T. Van Riet

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