Abstract:We investigate the average mean escape time of particles over a potential barrier for an overdamped spatially periodic system driven by thermal fluctuations and subject to a dc constant bias force and an ac time-oscillatory drive. Some new anomalous behaviors of the average mean escape time are found, including: multiple resonant activation, multiple anti-Resonant activation, and thermally weakened stability. Some of the experimental verifications of these results are theoretically applied to the Josephson junction.
(Fluctuation phenomena, random processes, noise, and Brownian motion)
引用本文:
. [J]. 中国物理快报, 2014, 31(06): 60504-060504.
LI Jing-Hui. Average Mean Escape Time for an Overdamped Spatially-Periodic System and Application to Josephson Junction. Chin. Phys. Lett., 2014, 31(06): 60504-060504.