Time-Space Noncommutative Abelian Solitons

Details Time-Space Noncommutative Abelian Solitons Time-Space Noncommutative Abelian Solitons

2005-07-06

arxiv.org/abs/hep-th/0507062v1

Phys.Lett. B625 (2005) 145-155

Physics

High Energy Physics

High Energy Physics - Theory

1+10 pages

Scientific paper

10.1016/j.physletb.2005.08.054

We demonstrate the construction of solitons for a time-space Moyal-deformed integrable U(n) sigma model (the Ward model) in 2+1 dimensions. These solitons cannot travel parallel to the noncommutative spatial direction. For the U(1) case, the rank-one single-soliton configuration is constructed explicitly and is singular in the commutative limit. The projection to 1+1 dimensions reduces it to a noncommutative instanton-like configuration. The latter is governed by a new integrable equation, which describes a Moyal-deformed sigma model with a particular Euclidean metric and a magnetic field.

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