Open String Fields As Matrices

  title={Open String Fields As Matrices},
  author={Teruhiko Kawano and Kazumi Okuyama},
We present a new representation of the string vertices of the cubic open string field theory. By using this three-string vertex, we attempt to identify open string fields as huge-sized matrices by following Witten's idea. By using these huge matrices, we obtain some results about the construction of partial isometries in the algebra of open string fields.