Thermal escape from a metastable state in periodically driven Josephson junctions
Guozhu Sun, Ning Dong, Guangfeng Mao, Jian Chen, Weiwei Xu, Zhengming Ji, Lin Kang, Peiheng Wu, Yang Yu, Dingyu Xing
DOI 10.1103/PhysRevE.75.021107 · Physical Review E
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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 resonancelike behaviors as a function of the driving frequency. The resonances also crucially depended on the initial condition of the system. Numerical simulations showed good agreement with the experimental results.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 16 | Pressure not reported | unknown |
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