Comments on Schnabl's analytic solution for tachyon condensation in Witten's open string field theory
By Y. Okawa. 2006
213 citations recorded by the source corpus.
Schnabl recently constructed an analytic solution for tachyon condensation in Witten's open string field theory. The solution consists of two pieces. Only the first piece is involved in proving that the solution satisfies the equation of motion when contracted with any state in the Fock space. On the other hand, both pieces contribute in evaluating the kinetic term to reproduce the value predicted by Sen's conjecture. We therefore need to understand why the second piece is necessary. We evaluate the cubic term of the string field theory action for Schnabl's solution and use it to show that the second piece is necessary for the equation of motion contracted with the solution itself to be satisfied. We also present the solution in various forms including a pure-gauge configuration and provide simpler proofs that it satisfies the equation of motion.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics
View Paper: https://www.semanticscholar.org/paper/4c361b9f5a64f47742b47bc10ffb295cb4d00c24
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Citations in the corpus
- Analytic solutions for marginal deformations in open string field theory (2007, methodology): “Since ∂t e −tL L = −L+L e−tL + L and −L+L corresponds to L in the correlator, an insertion of L is equivalent to taking a derivative with respect to t [5].”
- A simple analytic solution for tachyon condensation (2009, methodology): “where ψn are wedge states with certain insertions (for more details, see [1, 2]).”
- Proof of vanishing cohomology at the tachyon vacuum (2006, background): “We would like to thank T. Grimm, A. Hashimoto, L. Motl, Y. Okawa, E. Witten and B. Zwiebach for useful conversations.”