Suppression of Timing Errors in Short Overdamped Josephson Junctions

Andrey L. Pankratov and Bernardo Spagnolo

Phys. Rev. Lett. 93, 177001 – Published 18 October 2004

Abstract

The influence of fluctuations and periodical driving on temporal characteristics of short overdamped Josephson junctions is analyzed. We obtain the standard deviation of the switching time in the presence of a dichotomous driving force for arbitrary noise intensity and in the frequency range of practical interest. For sinusoidal driving the resonant activation effect has been observed. The mean switching time and its standard deviation have a minimum as a function of driving frequency. As a consequence the optimization of the system for fast operation will simultaneously lead to the minimization of timing errors.

Received 20 December 2003

DOI:https://doi.org/10.1103/PhysRevLett.93.177001

Authors & Affiliations

Andrey L. Pankratov^1,* and Bernardo Spagnolo^2,†

¹Institute for Physics of Microstructures of RAS, GSP-105, Nizhny Novgorod 603950, Russia
²INFM and Dipartimento di Fisica e Tecnologie Relative, Group of Interdisciplinary Physics‡, Università di Palermo, Viale delle Scienze, I-90128 Palermo, Italy

^*Electronic address: alp@ipm.sci-nnov.ru
^†Electronic address: spagnolo@unipa.it
^‡Electronic address: http://gip.dft.unipa.it

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Issue

Vol. 93, Iss. 17 — 22 October 2004

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