World Sheet Geometry of Classical Solutions in String Field Theory

Details World Sheet Geometry of Classical Solutions in String Field Theory World Sheet Geometry of Classical Solutions in String Field Theory

2004-05-11

arxiv.org/abs/hep-th/0405097v2

Prog.Theor.Phys. 112 (2004) 863-882

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, LaTeX with PTPTeX.cls, 10 figures; published version; Sec. 4.3 added and errors corrected

Scientific paper

10.1143/PTP.112.863

We investigate classical solutions of string field theory proposed by Takahashi and Tanimoto in the case of even order polynomial functions. The BRS charge and the Feynman propagator of open string field theory expanded around the solution are specified by Jenkins-Strebel quadratic differential, which describes geometry of the string worldsheet. We show that the solution becomes nontrivial when two second order poles of the quadratic differential coincide each other on the unit disk. In this case, an open string boundary shrinks to a point.

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