Boundary State of Superstring in Open String Channel
نویسندگان
چکیده
منابع مشابه
Boundary state in open string channel and open/closed string field theory
We generalize the idea of boundary states to open string channel. They describe the emission and absorption of the open string in the presence of intersecting D-branes. We study the algebra between such states under the star products of string field theory and confirm that they are projectors in a generalized sense. Based on this observation, we propose a modular dual description of Witten’s op...
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We construct a class of BRST-invariant closed string states for any classical solution of open string field theory. The closed string state is a nonlinear functional of the open string field and changes by a BRST-exact term under a gauge transformation of the solution. As a result, its contraction with an on-shell closed string state provides a gauge-invariant observable of open string field th...
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We generalize the idea of boundary states to open string channel. They describe emission and absorption of open strings in the presence of intersecting D-branes. We construct the explicit oscillator representation for the free boson and fermionic ghost. Inner product between such states describes a disk amplitude with the shape of a rectangle and has the modular covariance with a nontrivial con...
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We derive boundary states which describe configurations of multiple parallel branes with arbitrary open string states interactions in bosonic string theory. This is obtained by a careful discussion of the factorization of open/closed string states amplitudes taking care of cycles needed by ensuring vertexes commutativity: in particular the discussion reveals that already at the tree level open ...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 2008
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.119.643