Perturbation Theory in Two Dimensional Open String Field Theory

Details Perturbation Theory in Two Dimensional Open String Field Theory Perturbation Theory in Two Dimensional Open String Field Theory

1993-02-18

arxiv.org/abs/hep-th/9302082v1

Phys.Rev. D47 (1993) 5460-5469

Physics

High Energy Physics

High Energy Physics - Theory

26 pages

Scientific paper

10.1103/PhysRevD.47.5460

In this paper we develop the covariant string field theory approach to open 2d strings. Upon constructing the vertices, we apply the formalism to calculate the lowest order contributions to the 4- and 5- point tachyon--tachyon tree amplitudes. Our results are shown to match the `bulk' amplitude calculations of Bershadsky and Kutasov. In the present approach the pole structure of the amplitudes becomes manifest and their origin as coming from the higher string modes transparent.

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