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Thermal Escape from a Metastable State in Periodically Driven Josephson Junctions

Guozhu Sun·Jian Chen·Weiwei Xu·Zhengming Ji·Lin Kang·Peiheng Wu·Guangfeng Mao·Ning Dong·Yang Yu·Dingyu Xing
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Abstract

Resonant activation and noise-enhanced stability were observed in an underdamped real physical system, i.e., Josephson tunnel junctions. With a weak sinusoidal driving force applied, the thermal activated escape from a potential well underwent resonance-like behavior as a function of the driving frequency. The resonance also crucially depended on the initial condition of the system. Numerical simulations showed good agreement with the experimental results.

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Guozhu Sun, Jian Chen, Weiwei Xu, Zhengming Ji, Lin Kang, Peiheng Wu, Guangfeng Mao, Ning Dong, Yang Yu, Dingyu Xing. 2006-04-26. Thermal Escape from a Metastable State in Periodically Driven Josephson Junctions. https://doi.org/10.1103/physreve.75.021107

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