Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-01-28
Physics
High Energy Physics
High Energy Physics - Theory
12 pages
Scientific paper
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 $k^\mu A_\mu=0$ are satisfied. Earlier calculations using Fock space techniques by Hata and Kawano have found massless vector states that are not necessarily transverse.
Rashkov Radoslav
Viswanathan Sankaran K.
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