Two Dimensional QCD is a String Theory
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The partition function of two dimensional QCD on a Riemann surface of area $A$ is expanded as a power series in $1/N$ and $A$. It is shown that the coefficients of this expansion are precisely determined by a sum over maps from a two dimensional surface onto the two dimensional target space. Thus two dimensional QCD has a simple interpretation as a closed string theory.
27 pages, PUPT-1376 LBL-33458
27 pages, PUPT-1376 LBL-33458