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A Proposal for the Vector State in Vacuum String Field Theory

Radoslav Rashkov·K Sankaran Viswanathan
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Abstract

A previous calculation on the tachyon state arising as fluctuations of a $D$ brane in vacuum string field theory is extended to include the vector state. We use the boundary conformal field theory approach of Rastelli, Sen and Zwiebach to construct a vector state. It is shown that the vector field satisfies the linearized equations of motion provided the two conditions $k^2=0$ and $k^μA_μ=0$ are satisfied. Earlier calculations using Fock space techniques by Hata and Kawano have found massless vector states that are not necessarily transverse.

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Radoslav Rashkov, K Sankaran Viswanathan. 2002-01-28. A Proposal for the Vector State in Vacuum String Field Theory. https://arxiv.org/abs/hep-th/0201229

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