NONLINEAR DYNAMICS

The interference sensitivity of bistable systems to subthreshold signals

G. M. Drabkin<sup>ab

a</sup> B. P. Konstantinov Petersburg Nuclear Physics Institute, Russian Academy of Sciences
^b Hahn-Meitner-Institut

Abstract: A new approach to studying the influence of intense noise on the sensitivity of bistable systems detecting subthreshold signals is proposed. It is shown that the interference interaction between two identical bistable systems coherently excited by the same above-threshold noise may increase the sensitivity with respect to a subthresold signal by more than two orders of magnitude.

PACS: 75.60-d

Received: 25.04.2002
Revised: 03.06.2002

 English version: Journal of Experimental and Theoretical Physics Letters, 2002, 76:1, 8–10

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