Taming the Tachyon in Cubic String Field Theory

Details Taming the Tachyon in Cubic String Field Theory Taming the Tachyon in Cubic String Field Theory

2005-05-04

arxiv.org/abs/hep-th/0505031v1

JHEP 0508 (2005) 104

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, 7 eps figures, in JHEP style

Scientific paper

10.1088/1126-6708/2005/08/104

We give evidence based on level-truncation computations that the rolling tachyon in cubic open string field theory (CSFT) has a well-defined but wildly oscillatory time-dependent solution which goes as $e^t$ for $t \to -\infty$. We show that a field redefinition taking the CSFT effective tachyon action to the analogous boundary string field theory (BSFT) action takes the oscillatory CSFT solution to the pure exponential solution $e^t$ of the BSFT action.

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