FRUSTRATED PERCOLATION, SPIN-GLASSES AND GLASSES

The static and dynamic properties of the frustrated percolation model are investigated. This model, which contains frustration as an essential ingredient, exhibits two transitions: a percolation transition at a temperature T-p with critical exponents of the ferromagnetic (s = 1/2)-state Potts model, and a second transition at a lower temperature T-g in the same universality class of the Ising spin glass model. Above T-p the time-dependent autocorrelation function is characterized by a single exponential, while for T-p > T > T-g preliminary numerical results show a broad shoulder or plateau typical of a structural glass transition. Below T-g the system is in glassy state with an infinitely long relaxation time.