Spatiotemporal stochastic resonance in fully frustrated Josephson ladders

Beom Jun Kim, Mahn-Soo Choi, Petter Minnhagen, Gun Sang Jeon, H. J. Kim, and M. Y. Choi
Phys. Rev. B 63, 104506 – Published 13 February 2001
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Abstract

We consider a Josephson-junction ladder in an external magnetic field with half flux quantum per plaquette. When driven by external currents, periodic in time and staggered in space, such a fully frustrated system is found to display spatiotemporal stochastic resonance under the influence of thermal noise. Such resonance behavior is investigated both numerically and analytically, which reveals significant effects of anisotropy and yields rich physics.

  • Received 20 July 2000

DOI:https://doi.org/10.1103/PhysRevB.63.104506

©2001 American Physical Society

Authors & Affiliations

Beom Jun Kim1, Mahn-Soo Choi2,3, Petter Minnhagen1, Gun Sang Jeon4,*, H. J. Kim4, and M. Y. Choi4

  • 1Department of Theoretical Physics, Umeå University, 901 87 Umeå, Sweden
  • 2Departement Physik und Astronomie, Universität Basel, Klingelbergstrasse 82, CH-4056 Basel, Switzerland
  • 3School of Physics, Korea Institute for Advanced Study, Cheongryanri-dong 207-43, Seoul 130-012, Korea
  • 4Department of Physics and Center for Theoretical Physics, Seoul National University, Seoul 151-742, Korea

  • *Present address: Center for Strongly Correlated Materials Research, Seoul National University, Seoul 151-742, Korea.

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Issue

Vol. 63, Iss. 10 — 1 March 2001

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