Renormalization schemes for SFT solutions
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In this paper, we examine the space of renormalization schemes compatible with the Kiermaier and Okawa  framework for constructing Open String Field Theory solutions based on marginal operators with singular self-OPEs. We show that, due to freedom in defining the renormalization scheme which tames these singular OPEs, the solutions obtained from the KO framework are not necessarily unique. We identify a multidimensional space of SFT solutions corresponding to a single given marginal operator.
KeywordsBosonic Strings String Field Theory
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