Open String Fields As Matrices

Abstract

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.

24 pages, lanlmac; (v2) references added; (v3) typos corrected and one reference added

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