On Exact Tachyon Potential in Open String Field Theory

By A. Gerasimov, S. Shatashvili. 2000

367 citations recorded by the source corpus.

In these notes we revisit the tachyon lagrangian in the open string field theory using background independent approach of Witten from 1992. We claim that the tree level lagrangian (up to second order in derivatives and modulo some class of field redefinitions) is given by L = e−T(∂T)2+(1+T)e−T. Upon obvious change of variables this leads to the potential energy −2log 2/e with canonical kinetic term. This lagrangian may be also obtained from the effective tachyon lagrangian of the p-adic strings in the limit p→1. Applications to the problem of tachyon condensation are discussed.

Subfields: Applied Mathematics, Mathematical Physics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a39060754d97d30d1fd958a22783513621a7f1ea

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In Applied Mathematics

In Mathematical Physics

In Nuclear and High Energy Physics

Citations in the corpus

Analytic solution for tachyon condensation in open string field theory (2005, background): “Within boundary string field theory the first and second conjectures were proved in [13, 14, 15].”
String Field Theory Around the Tachyon Vacuum (2000, methodology): “More recently, work in boundary string field theory (B-SFT) [42, 43, 44, 45, 46, 47], − a version of string field theory incorporating a certain degree of background independence, − confirmed the form of the tachyon potentials proposed in [37, 38] and established conclusively the energetics aspect o”
Remarks on Tachyon Condensation in Superstring Field Theory (2000, methodology): “In this note we will consider the generalization of the results of [9,10] to tachyon condensation on unstable brane configurations in the superstring [21].”
Exact noncommutative solitons (2000, neutral): “ar X iv :h ep -t h/ 00 10 06 0v 3 1 J an 2 00 1 hep-th/0010060 EFI-00-38 Exact Noncommutative Solitons Jeffrey A. Harvey, Per Kraus, and Finn Larsen Enrico Fermi Institute and Department of Physics University of Chicago,”
D-Branes, Tachyons, and String Field Theory (2003, methodology): “The BSFT approach is well suited to derive certain concrete results regarding the tachyon vacuum [ 10 ]—for example, using this approach the energy of the tachyon vacuum can be computed exactly.”
Some exact results on tachyon condensation in string field theory (2000, background): “Shatashvili have independently noticed the relevance of boundary string field theory to the problem of tachyon condensation [10].”
Dynamics with Infinitely Many Time Derivatives and Rolling Tachyons (2002, background): “The action, however, makes sense for other values of p, and even in the limit p→ 1, where it reduces to the tachyon action of [19] as noted in [20].”