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BPS Bound States Of D0-D6 And D0-D8 Systems In A B-Field

Witten, Edward (2002) BPS Bound States Of D0-D6 And D0-D8 Systems In A B-Field. Journal of High Energy Physics, 2002 (4). Art. No. 012. ISSN 1126-6708. doi:10.1088/1126-6708/2002/04/012.

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The D0-D6 system, which is not supersymmetric in the absence of a Neveu-Schwarz B-field, becomes supersymmetric if a suitable constant B-field is turned on. On one side of the supersymmetric locus, this system has a BPS bound state, and on the other side it does not. After compactification on Bbb T6, this gives a simple example in which the number of 1/8 BPS states jumps as the moduli of the compactification are changed. The D0-D8 system in a B-field has two different supersymmetric loci, only one of which is continuously connected to the familiar supersymmetric D0-D8 system without a B-field. In a certain range, the D0-D8 system also has a BPS bound state. In the limit in which the B-field goes to infinity, supersymmetric D0-D6 and D0-D8 systems and their bound states can be studied using non-commutative Yang-Mills theory.

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Witten, Edward0000-0002-7752-6073
Additional Information:© SISSA/ISAS 2002 Received 28 February 2002, accepted for publication 6 April 2002, Published 10 April 2002 This work was supported in part by NSF Grant PHY-9513835 and the Caltech Discovery Fund. I would like to thank J. Gomis for discussions. E-print number: hep-th/0012054
Subject Keywords:Superstrings and Heterotic Strings, D-branes, Non-Commutative Geometry
Issue or Number:4
Record Number:CaltechAUTHORS:WITjhep02
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2152
Deposited By: Archive Administrator
Deposited On:12 Mar 2006
Last Modified:08 Nov 2021 19:45

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