On different actions for the vacuum of bosonic string field theory

Details On different actions for the vacuum of bosonic string field theory On different actions for the vacuum of bosonic string field theory

2003-01-13

arxiv.org/abs/hep-th/0301079v1

JHEP 0308:017,2003

Physics

High Energy Physics

High Energy Physics - Theory

15 pages

Scientific paper

10.1088/1126-6708/2003/08/017

We study a family of kinetic operators in string field theory describing the theory around the closed string vacuum. Those operators are based on the analytical classical solutions of Takahashi and Tanimoto and are analogous to the pure ghost action usually referred to as "vacuum string field theory," but are much more general, and less singular than the pure ghost operator. The closed string vacuum is related to the D-brane vacuum by large, singular, gauge transformations or field redefinition, and all those different representations are related to each other by small gauge transformations. We try to clarify the nature of this singular gauge transformation. We also show that by choosing the Siegel gauge one recovers the propagator proposed in hep-th/0207266 that generates closed string surfaces.

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