Unstoppable brane-flux decay of D6 branes
Unstoppable brane-flux decay of D6 branes
We investigate p D6 branes inside a flux throat that carries K × M D6 charges with K the 3-form flux quantum and M the Romans mass. In such a setup brane-flux annihilation can proceed through the nucleation of KK5 branes. We find that within the calculable supergravity regime where g s p is large, the D6 branes annihilate immediately against the fluxes despite the existence of a metastable state at small p/M in the probe approximation. The crucial property that causes this naive conflict with effective field theory is a singularity in the 3-form flux, which we cut off at string scale. Our result explains the absence of regular solutions at finite temperature and suggests there should be a smooth time-dependent solution. We also discuss the qualitative differences between D6 branes and D3 branes, which makes it a priori not obvious to conclude the same instability for D3 branes.
Danielsson, U.H.
2a64125a-6513-44a1-a751-96afed217c71
Gautason, F.F.
0c48d448-e092-48bf-a310-45862bd6fc5f
Van Riet, T.
f82c77a1-9588-4814-b5eb-725d5dd77d58
27 March 2017
Danielsson, U.H.
2a64125a-6513-44a1-a751-96afed217c71
Gautason, F.F.
0c48d448-e092-48bf-a310-45862bd6fc5f
Van Riet, T.
f82c77a1-9588-4814-b5eb-725d5dd77d58
Danielsson, U.H., Gautason, F.F. and Van Riet, T.
(2017)
Unstoppable brane-flux decay of D6 branes.
JHEP.
(doi:10.1007/JHEP03(2017)141).
Abstract
We investigate p D6 branes inside a flux throat that carries K × M D6 charges with K the 3-form flux quantum and M the Romans mass. In such a setup brane-flux annihilation can proceed through the nucleation of KK5 branes. We find that within the calculable supergravity regime where g s p is large, the D6 branes annihilate immediately against the fluxes despite the existence of a metastable state at small p/M in the probe approximation. The crucial property that causes this naive conflict with effective field theory is a singularity in the 3-form flux, which we cut off at string scale. Our result explains the absence of regular solutions at finite temperature and suggests there should be a smooth time-dependent solution. We also discuss the qualitative differences between D6 branes and D3 branes, which makes it a priori not obvious to conclude the same instability for D3 branes.
Text
JHEP03(2017)141
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Accepted/In Press date: 13 March 2017
Published date: 27 March 2017
Identifiers
Local EPrints ID: 497444
URI: http://eprints.soton.ac.uk/id/eprint/497444
ISSN: 1126-6708
PURE UUID: af10ffd1-180f-4b20-b1fe-753688e6cb39
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Date deposited: 22 Jan 2025 18:05
Last modified: 22 Aug 2025 02:43
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Author:
U.H. Danielsson
Author:
F.F. Gautason
Author:
T. Van Riet
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