Symmetry Breaking of Fluctuation Dynamics by Noise Color

M. Arrayás, M. I. Dykman, R. Mannella, P. V. E. McClintock, and N. D. Stein
Phys. Rev. Lett. 84, 5470 – Published 12 June 2000
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Abstract

Activated escape is investigated for systems that are driven by noise whose power spectrum peaks at a finite frequency. Analytic theory and analog and digital experiments show that the system dynamics during escape exhibit a symmetry-breaking transition as the width of the fluctuational spectral peak is varied. For double-well potentials, even a small asymmetry may result in a parametrically large difference of the activation energies for escape from different wells.

  • Received 10 November 1999

DOI:https://doi.org/10.1103/PhysRevLett.84.5470

©2000 American Physical Society

Authors & Affiliations

M. Arrayás1, M. I. Dykman2, R. Mannella3, P. V. E. McClintock1, and N. D. Stein1

  • 1Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom
  • 2Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824
  • 3Dipartimento di Fisica, Università di Pisa and INFM UdR Pisa, Piazza Torricelli 2, 56100 Pisa, Italy

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Vol. 84, Iss. 24 — 12 June 2000

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