String Field Theory and Perturbative Dynamics of Noncommutative Field Theory

Details String Field Theory and Perturbative Dynamics of Noncommutative Field Theory String Field Theory and Perturbative Dynamics of Noncommutative Field Theory

2000-10-05

arxiv.org/abs/hep-th/0010027v2

Phys.Lett. B498 (2001) 97-103

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, RevTex, A comment added, new references added

Scientific paper

10.1016/S0370-2693(00)01375-7

The perturbative dynamics of noncommutative field theory (NCFT) is discussed from a point view of string field theory. As in the commutative case it is inevitable to introduce a closed string, which may be described as a bound state of two noncommutative open strings. We point out that the closed string, interacting nontrivially with the open string, plays an essential role in the ultraviolet region. The contribution of the closed string is responsible for the discrepancy between the NCFT and the string field theory. It clarifies the controversial issues associated with the ultraviolet/infrared (UV/IR) behaviour of the perturbative dynamics of the NCFT.

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