Non-perturbative fixed point in a non-equilibrium phase transition

Abstract

We apply the non-perturbative renormalization group method to a class of out-of-equilibrium phase transitions (usually called ``parity conserving'' or, more properly, ``generalized voter'' class) which is out of the reach of perturbative approaches. We show the existence of a genuinely non-perturbative fixed point, i.e. a critical point which does not seem to be Gaussian in any dimension.

4 pages, 2 figures. Submitted version with slightly amended discussion on earlier perturbative renormalisation group results

References in corpus (2)

• Langevin description of critical phenomena with two symmetric absorbing states
• The non-equilibrium phase transition of the pair-contact process with diffusion