The effect of quenched disorder in neutral theories

  title={The effect of quenched disorder in neutral theories},
  author={Claudio Borile and Amos Maritan and Miguel A. Munoz},
We study systems with two symmetric absorbing states, such as the voter model and variations of it, which have been broadly used as minimal neutral models in genetics, population ecology, sociology, etc. We analyze the effects of a key ingredient ineluctably present in most real applications: random-field-like quenched disorder. In accord with simulations and previous findings, coexistence between the two competing states/opinions turns out to be strongly favored by disorder in the standard… CONTINUE READING