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The diffusive pair contact process and non-equilibrium wetting

Haye Hinrichsen
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Abstract

The Langevin equation for the pair contact process with diffusion (PCPD) 2A->3A, 2A->0 can be mapped by a Cole-Hopf transformation to a Kardar-Parisi-Zhang equation in a potential which has been discussed previously in the context of non-equilibrium wetting. Using this transformation the phase transition in the PCPD manifests itself as a depinning transition at the borderline of a region of phase coexistence, supporting the conjecture that the PCPD belongs to the DP universality class.

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Haye Hinrichsen. 2003-02-19. The diffusive pair contact process and non-equilibrium wetting. https://arxiv.org/abs/cond-mat/0302381

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