• Corpus ID: 141410619

The derivative of the Kardar-Parisi-Zhang equation is not in the KPZ universality class

  title={The derivative of the Kardar-Parisi-Zhang equation is not in the KPZ universality class},
  author={Enrique Rodr{\'i}guez-Fern{\'a}ndez and R. Cuerno},
The Kardar-Parisi-Zhang (KPZ) equation is a paradigmatic model of nonequilibrium low-dimensional systems with spatiotemporal scale invariance, recently highlighting universal behavior in fluctuation statistics. Its space derivative, namely the noisy Burgers equation, has played a very important role in its study, predating the formulation of the KPZ equation proper, and being frequently held as an equivalent system. We show that, while differences in the scaling exponents for the two equations… 

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