STRING BIT MODELS FOR SUPERSTRING

We extend the model of string as a polymer of string bits to the case of superstring. We mainly concentrate on type II-B superstring, with s ome discussion of the obstacles presented by not II-B superstring, tog ether with possible strategies for surmounting them. As with previous work on bosonic string we work within the light-cone gauge. The bit mo del possesses a good deal less symmetry than the continuous string the ory. For one thing, the bit model is formulated as a Galilei-invariant theory in [(D - 2)+ 1]-dimensional space-time. This means that Poinca re invariance is reduced to the Galilei subgroup in D - 2 space dimens ions. Naturally the supersymmetry present in the bit model is likewise dramatically reduced. Continuous string can rise in the bit models wi th the formation of infinitely long polymers of string bits. Under the right circumstances (at the critical dimension) these polymers can be have as string moving in D-dimensional space-time enjoying the full N = 2 Poincare supersymmetric dynamics of type II-B superstring.