Anomalous time correlation in two-dimensional driven diffusive systems

Takenobu Nakamura, Michio Otsuki, and Shin-ichi Sasa
Phys. Rev. E 71, 061107 – Published 23 June 2005

Abstract

We study the time-correlation function of a density field in two-dimensional driven diffusive systems within the framework of fluctuating hydrodynamics. It is found that the time correlation exhibits power-law behavior in an intermediate time regime in the case that the fluctuation-dissipation relation is violated and that the power-law exponent depends on the extent of this violation. We obtain this result by employing a renormalization group method to treat a logarithmic divergence in time.

  • Received 15 October 2004

DOI:https://doi.org/10.1103/PhysRevE.71.061107

©2005 American Physical Society

Authors & Affiliations

Takenobu Nakamura*, Michio Otsuki, and Shin-ichi Sasa

  • Department of Pure and Applied Sciences, University of Tokyo, Komaba, Tokyo 153-8902, Japan

  • *Electronic address: soushin@jiro.c.u-tokyo.ac.jp
  • Electronic address: otsuki@jiro.c.u-tokyo.ac.jp
  • Electronic address: sasa@jiro.c.u-tokyo.ac.jp

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Issue

Vol. 71, Iss. 6 — June 2005

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