Thermal Escape from a Metastable State in Periodically Driven Josephson Junctions

Details Thermal Escape from a Metastable State in Periodically Driven Josephson Junctions Thermal Escape from a Metastable State in Periodically Driven Josephson Junctions

2006-02-17

arxiv.org/abs/cond-mat/0602401v3

Physics

Condensed Matter

Other Condensed Matter

16 pages,6 figures

Scientific paper

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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