Noise induced phenomena in point Josephson junctions

TL;DR

This paper investigates how noise influences the stability and switching times of overdamped Josephson junctions, revealing that fluctuations can both shorten and prolong the mean switching time.

Contribution

It provides a detailed analysis of noise effects on mean switching time and stability in Josephson junctions, highlighting the dual role of fluctuations.

Findings

Noise can both decrease and increase switching times.

Noise enhanced stability effect is observed.

Fluctuations significantly impact junction stability.

Abstract

We present the analysis of the mean switching time and its standard deviation of short overdamped Josephson junctions, driven by a direct current and a periodic signal. The effect of noise enhanced stability is investigated. It is shown that fluctuations may both decrease and increase the switching time.