Renormalized field theory of the Gribov process with quenched disorder
- 1 May 1997
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 55 (5) , 6253-6256
- https://doi.org/10.1103/physreve.55.6253
Abstract
Using field theory, I show that the renormalization-group flow of the Gribov process (Reggeon field theory or directed percolation) equipped with quenched randomness does not reach a stable fixed point, and has only runaway solutions in the physical domain. This result supports recent findings of Moreira and Dickman from Monte Carlo simulations of the two-dimensional contact process with random dilution, namely, logarithmic critical spreading and no power laws.Keywords
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