出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We present a numerical study of a two dimensional model of the Wess-Zumino type. We formulate
this model on a sphere, where the fields are expanded in spherical harmonics. The sphere
becomes fuzzy by a truncation in the angular momenta. This leads to a finite set of degrees of
freedom without explicitly breaking the space symmetries. The corresponding field theory is expressed
in terms of a matrix model, which can be simulated. We present first numerical results
for the phase structure of a variant of this model on a fuzzy sphere. The prospect to restore exact
supersymmetry in certain limits is under investigation.
