| has gloss | eng: In statistical physics Directed Percolation (DP) refers to a class of models that mimic filtering of fluids through porous materials along a given direction. Varying the microscopic connectivity of the pores, these models display a phase transition from a macroscopically permeable (percolating) to an impermeable (non-percolating) state. Directed Percolation is also used as a simple model for epidemic spreading with a transition between survival and extinction of the disease depending on the infection rate. |
