Some Computations in Background Independent Open-String Field Theory

Physics – High Energy Physics – High Energy Physics - Theory

Scientific paper

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14 pp

Scientific paper

10.1103/PhysRevD.47.3405

Recently, background independent open-string field theory has been formally defined in the space of all two-dimensional world-sheet theories. In this paper, to make the construction more concrete, I compute the action for an off-shell tachyon field of a certain simple type. From the computation it emerges that, although the string field action does not coincide with the world-sheet (matter) partition function in general, these functions do coincide on shell. This can be demonstrated in general, as long as matter and ghosts are decoupled.

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