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Tachyon condensation in unstable type I D-brane systems

Bergman, Oren (2000) Tachyon condensation in unstable type I D-brane systems. Journal of High Energy Physics, 2000 (11). Art. no. 015. ISSN 1126-6708. doi:10.1088/1126-6708/2000/11/015.

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Type-I string theory provides eight classes of unstable D-brane systems. We determine the gauge group and tachyon spectrum for each one, and thereby describe the gauge symmetry breaking pattern in the low-energy world-volume field theory. The topologies of the resulting coset vacuum manifolds are related to the real K-theory groups KO-n, extending the known relations between the type-II classifying spaces BU and U and the complex K-theory groups K0 and K-1. We also comment on the role of the background D9-branes.

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Additional Information:Received 12 October 2000, accepted for publication 10 November 2000, Published 12 December 2000 I would like to thank Jaume Gomis and Edward Witten for useful conversations, and John Schwarz for earlier collaboration on some of the material in section 4. I would also like to thank Edward Witten for pointing out an error in the first version of this paper. Finally, I thank the Aspen Center for Physics for its warm hospitality. This work is supported in part by the DOE under grant no. DE-FG03-92-ER 40701. E-print number: hep-th/0009252
Subject Keywords:D-branes, Brane Dynamics in Gauge Theories
Issue or Number:11
Record Number:CaltechAUTHORS:BERjhep00b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1256
Deposited By: Archive Administrator
Deposited On:06 Jan 2006
Last Modified:08 Nov 2021 19:08

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