Reexamining Classical Solution and Tachyon Mode in Vacuum String Field Theory

Details Reexamining Classical Solution and Tachyon Mode in Vacuum String Field Theory Reexamining Classical Solution and Tachyon Mode in Vacuum String Field Theory

2002-06-22

arxiv.org/abs/hep-th/0206208v2

Nucl.Phys. B651 (2003) 3-25

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, no figures, LaTeX2e, v2: minor changes

Scientific paper

10.1016/S0550-3213(02)01094-5

We reexamine the oscillator construction of the D25-brane solution and the tachyon fluctuation mode of vacuum string field theory given previously. Both the classical solution and the tachyon mode are found to violate infinitesimally their determining equations in the level cut-off regularization. We study the effects of these violations on physical quantities such as the tachyon mass and the ratio of the energy density of the solution relative to the D25-brane tension. We discuss a possible way to resolve the problem of reproducing the expected value of one for the ratio.

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