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Singular Gauge Transformation and the Erler-Maccaferri Solution in Bosonic Open String Field Theory

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arxiv 1707.00585 v1 pith:YAFJ7P66 submitted 2017-07-03 hep-th

classification hep-th
keywords solutiongaugetransformationbosoniccheckerler-maccaferrifieldmultiple-brane
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abstract

We study candidates of the multiple-brane solutions of bosonic open string field theory. They are constructed by performing a singular gauge transformation $n$ times for the Erler-Maccaferri solution. We check the EOM in the strong sense, and find that it is satisfied only when we perform the gauge transformation once. We calculate the energy for that case and obtain a support that the solution is a multiple-brane solution. We also check the tachyon profile for a specific solution which we interpret as describing a D24-brane placed on a D25-brane.

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  1. Singular field redefinition between Witten's string field theory and Witten's theory deformed by Ellwood invariant

    hep-th 2026-01 conditional novelty 6.0 of 10

    A singular field redefinition connects Witten's open string field theory to its Ellwood-invariant deformation, and the tachyon vacuum transfers consistently.

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