Controlling symmetry-breaking states by a hidden quantity in multiplicative noise

Ying Tang, Ruoshi Yuan, Jianhong Chen, and Ping Ao
Phys. Rev. E 90, 052121 – Published 14 November 2014

Abstract

The inhomogeneity of multiplicative white noise leads to various coupling modes between deterministic and stochastic forces. We investigate the phase transition induced by the variation of the coupling mode through manipulating its characteristic parameter continuously. Even when the noise strength is fixed, an increase of this parameter can enhance or inhibit the symmetry-breaking state. We also propose a scheme to implement these phase transitions experimentally. Our result demonstrates that the coupling mode previously considered to be a mathematical convention serves as an additional quantity leading to physically observable phase transitions. This observation provides a mechanism to control the effect of noise without regulating the noise strength.

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  • Received 3 June 2014
  • Revised 19 August 2014

DOI:https://doi.org/10.1103/PhysRevE.90.052121

©2014 American Physical Society

Authors & Affiliations

Ying Tang1,2,*, Ruoshi Yuan3, Jianhong Chen4, and Ping Ao2,1,†

  • 1Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2Key Laboratory of Systems Biomedicine Ministry of Education, Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, China
  • 3School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 4ZhiYuan College, Shanghai Jiao Tong University, Shanghai 200240, China

  • *Author to whom all correspondence should be addressed: jamestang23@gmail.com
  • aoping@sjtu.edu.cn

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Vol. 90, Iss. 5 — November 2014

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