  Many Polyakov loop models can be written in a dual formulation which is free
of sign problem even when a non-vanishing baryon chemical potential is
introduced in the action. Here, results of numerical simulations of a dual
representation of one such effective Polyakov loop model at finite baryon
density are presented. We compute various local observables such as energy
density, baryon density, quark condensate and describe in details the phase
diagram of the model. The regions of the first order phase transition and the
crossover, as well as the line of the second order phase transition, are
established. We also compute several correlation functions of the Polyakov
loops.
