Spontaneous Symmetry Breaking in Directed Percolation with Many Colors: Differentiation of Species in the Gribov Process
Phys. Rev. Lett. 78, 2890 – Published 14 April, 1997
DOI: https://doi.org/10.1103/PhysRevLett.78.2890
Abstract
A general field theoretic model of directed percolation with many colors that is equivalent to a population model (Gribov process) with many species near their extinction thresholds is presented. It is shown that the multicritical behavior is always described by the well-known exponents of Reggeon field theory. In addition, this universal model shows an instability that leads in general to a total asymmetry between each pair of species of a cooperative society.