Interpolating String Field Theories

Details Interpolating String Field Theories Interpolating String Field Theories

1992-02-05

arxiv.org/abs/hep-th/9202015v1

Mod. Phys. Lett. A7 (1992) 1079-1090

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, 7 figures (not included)

Scientific paper

A minimal area problem imposing different length conditions on open and closed curves is shown to define a one parameter family of covariant open-closed quantum string field theories. These interpolate from a recently proposed factorizable open-closed theory up to an extended version of Witten's open string field theory capable of incorporating on shell closed strings. The string diagrams of the latter define a new decomposition of the moduli spaces of Riemann surfaces with punctures and boundaries based on quadratic differentials with both first order and second order poles.

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