Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-11-14
Phys.Rev. D69 (2004) 086001
Physics
High Energy Physics
High Energy Physics - Theory
38 pages, no figures, LaTeX2e; v2: the footnote on hep-th/0302151 changed and moved to the introduction; v3: minor typos corre
Scientific paper
10.1103/PhysRevD.69.086001
We solve the equation of motion of Witten's cubic open string field theory in a series expansion using the regulated butterfly state. The expansion parameter is given by the regularization parameter of the butterfly state, which can be taken to be arbitrarily small. Unlike the case of level truncation, the equation of motion can be solved for an arbitrary component of the Fock space up to a positive power of the expansion parameter. The energy density of the solution is well-defined and remains finite even in the singular butterfly limit, and it gives approximately 68% of the D25-brane tension for the solution at the leading order. Moreover, it simultaneously solves the equation of motion of vacuum string field theory, providing support for the conjecture at this order. We further improve our ansatz by taking into account next-to-leading terms, and find two numerical solutions which give approximately 88% and 109%, respectively, of the D25-brane tension for the energy density. These values are interestingly close to those by level truncation at level 2 without gauge fixing studied by Rastelli and Zwiebach and by Ellwood and Taylor.
No associations
LandOfFree
Solving Witten's string field theory using the butterfly state does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Solving Witten's string field theory using the butterfly state, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solving Witten's string field theory using the butterfly state will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-270650