Diagrams of Noncommutative Phi-Three Theory from String Theory

Abstract

Starting from tree and one-loop tachyon amplitudes of open string theory in the presence of a constant B-field, we explore two problems. First we show that in the noncommutative field theory limit the amplitudes reduce to tree and one-loop diagrams of the noncommutative phi-three theory. Next, we check factorization of the one-loop amplitudes in the long cylinder limit.

12 pages, 3 figures, a comment on the Chan-Paton factors added

References in corpus (3)

• Noncommutative Perturbative Dynamics
• On Open String Sigma-Model and Noncommutative Gauge Fields
• A Note on Open Strings in the Presence of Constant B-Field

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