Noncommutative tachyons
Apr, 2000
16 pages
Published in:
- JHEP 06 (2000) 022
e-Print:
- hep-th/0005006 [hep-th]
Report number:
- IASSNS-HEP-00-36,
- TIFR-TH-00-20
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Abstract:
When unstable Dp-branes in type II string theory are placed in a B-field, the resulting tachyonic world-volume theory becomes noncommutative. We argue that for large noncommutativity parameter, condensation of the tachyon as a noncommutative soliton leads to new decay modes of the Dp-brane into (p-2)-brane configurations, which we interpret as suitably smeared BPS D(p-1)-branes. Some of these configurations are metastable. We discuss various generalizations of this decay process.- string model
- supersymmetry
- membrane model: D-brane
- membrane model: p-brane
- external field
- differential geometry: noncommutative
- tachyon
- soliton
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