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The energy of the analytic lump solution in SFT

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arxiv 1105.5926 v7 pith:ZOBUGNTL submitted 2011-05-30 hep-th

classification hep-th
keywords analyticenergyexactexpectedfieldsolutionstringtheory
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In a previous paper a method was proposed to find exact analytic solutions of open string field theory describing lower dimensional lumps, by incorporating in string field theory an exact renormalization group flow generated by a relevant operator in a worldsheet CFT. In this paper we compute the energy of one such solution, which is expected to represent a D24 brane. We show, both numerically and analytically, that its value corresponds to the theoretically expected one.

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  1. Numerical solution for tachyon vacuum in the Schnabl gauge

    hep-th 2019-08 conditional novelty 6.0 of 10

    A new level-truncation method reaches level 24 in the Schnabl gauge and shows the tachyon vacuum energy has a local minimum at level 12 before extrapolating toward the analytic value -1.

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