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Taming the Tachyon in Cubic String Field Theory

Erasmo Coletti·Ilya Sigalov·Washington Taylor
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Abstract

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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Erasmo Coletti, Ilya Sigalov, Washington Taylor. 2005-05-04. Taming the Tachyon in Cubic String Field Theory. https://doi.org/10.1088/1126-6708%2F2005%2F08%2F104

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