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We propose gauging matrix models of string theory to eliminate unwantednon-singlet states. To this end we perform a discretised light-conequantisation of large N gauge theory in 1+1 dimensions, with scalar orfermionic matter fields transforming in the adjoint representation of SU(N).The entire spectrum consists of bosonic and fermionic closed-stringexcitations, which are free as N tends to infinity. We analyze the generalfeatures of such bound states as a function of the cut-off and the gaugecoupling, obtaining good convergence for the case of adjoint fermions. Wediscuss possible extensions of the model and the search for new non-criticalstring theories.Comment: 20 pages (7 figures available from authors as postscipt files),  PUPT-134

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

String spectrum of (1 + 1)-dimensional large-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>N</mml:mi></mml:math>QCD with adjoint matter

String spectrum of (1 + 1)-dimensional large-NQCD with adjoint matter