{ "id": "cond-mat/9804305", "version": "v1", "published": "1998-04-28T19:10:45.000Z", "updated": "1998-04-28T19:10:45.000Z", "title": "An Analytical Study of Coupled Two-State Stochastic Resonators", "authors": [ "Udo Siewert", "Lutz Schimansky-Geier" ], "comment": "29 pages, 5 figures", "doi": "10.1103/PhysRevE.58.2843", "categories": [ "cond-mat.stat-mech" ], "abstract": "The two-state model of stochastic resonance is extended to a chain of coupled two-state elements governed by the dynamics of Glauber's stochastic Ising model. Appropriate assumptions on the model parameters turn the chain into a prototype system of coupled stochastic resonators. In a weak-signal limit analytical expressions are derived for the spectral power amplification and the signal-to-noise ratio of a two-state element embedded into the chain. The effect of the coupling between the elements on both quantities is analysed and array-enhanced stochastic resonance is established for pure as well as noisy periodic signals. The coupling-induced improvement of the SNR compared to an uncoupled element is shown to be limited by a factor four which is only reached for vanishing input noise.", "revisions": [ { "version": "v1", "updated": "1998-04-28T19:10:45.000Z" } ], "analyses": { "keywords": [ "coupled two-state stochastic resonators", "analytical study", "stochastic resonance", "two-state element", "model parameters turn" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. E" }, "note": { "typesetting": "TeX", "pages": 29, "language": "en", "license": "arXiv", "status": "editable" } } }