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  String field theory vertices, integrability and boundary states

Boyarsky, A., Kulik, B., & Ruchayskiy, O. (2003). String field theory vertices, integrability and boundary states. Journal of High Energy Physics, 2003(11): 045.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-52FE-6 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5300-7
Genre: Journal Article

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51038.pdf (Preprint), 443KB
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 Creators:
Boyarsky, Alexey1, Author
Kulik, Bogdan1, Author
Ruchayskiy, Oleg, Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              

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 Abstract: We study Neumann coefficients of the various vertices in theWitten’s open string field theory (SFT). We show that they are not independent, but satisfy an infinite set of algebraic relations. These relations are identified as so-called Hirota identities. Therefore, Neumann coefficients are equal to the second derivatives of tau-function of dispersionless Toda Lattice hierarchy (this tau-function is just a partition sum of normal matrix model). As a result, certain two-vertices of SFT are identified with the Neumann boundary states on an arbitrary curve. We further analyze a class of SFT surface states, which can be re-written in the closed string language in terms of boundary states. This offers a new correspondence between open string states and closed string states (boundary states) in SFT. We conjecture that these special states can be considered as describing D-branes and other extended objects as ”solitons” in SFT. We consider some explicit examples, one of them is a surface states corresponding to orientifold.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
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 Identifiers: eDoc: 51038
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Title: Journal of High Energy Physics
Source Genre: Journal
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Pages: - Volume / Issue: 2003 (11) Sequence Number: 045 Start / End Page: - Identifier: -