Noncommutative tachyons | Zendy

Keshav Dasgupta | Zendy; Govindan Rajesh | Zendy; Sunil Mukhi | Zendy

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Noncommutative tachyons

Author(s) -

Keshav Dasgupta,

Govindan Rajesh,

Sunil Mukhi

Publication year - 2000

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2000/06/022

Subject(s) - noncommutative geometry , tachyon , tachyon condensation , physics , tachyonic field , noncommutative quantum field theory , metastability , string (physics) , mathematical physics , string theory , brane cosmology , brane , field (mathematics) , soliton , theoretical physics , quantum electrodynamics , quantum mechanics , string field theory , mathematics , pure mathematics , gauge theory , gauge boson , higgs mechanism , nonlinear system

When unstable Dp-branes in type II string theory are placed in a B-field, theresulting tachyonic world-volume theory becomes noncommutative. We argue thatfor large noncommutativity parameter, condensation of the tachyon as anoncommutative soliton leads to new decay modes of the Dp-brane into(p-2)-brane configurations, which we interpret as suitably smeared BPSD(p-1)-branes. Some of these configurations are metastable. We discuss variousgeneralizations of this decay process.Comment: 15 pages, harvmac (b

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