Diagrams of Noncommutative Φ Theory from String Theory

نویسندگان

Oleg Andreev

Harald Dorn

چکیده

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 Φ theory. Next, we check factorization of the one-loop amplitudes in the long cylinder limit. PACS : 11.25.-w, 11.25.Db

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