title: Thermal escape from a metastable state in periodically driven Josephson junctions.
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.
authors.affiliation: Research Institute of Superconductor Electronics, Department of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, China.
authors.forename: Guozhu
authors.initials: G
authors.lastname: Sun
authors.forename: Ning
authors.initials: N
authors.lastname: Dong
authors.forename: Guangfeng
authors.initials: G
authors.lastname: Mao
authors.forename: Jian
authors.initials: J
authors.lastname: Chen
authors.forename: Weiwei
authors.initials: W
authors.lastname: Xu
authors.forename: Zhengming
authors.initials: Z
authors.lastname: Ji
authors.forename: Lin
authors.initials: L
authors.lastname: Kang
authors.forename: Peiheng
authors.initials: P
authors.lastname: Wu
authors.forename: Yang
authors.initials: Y
authors.lastname: Yu
authors.forename: Dingyu
authors.initials: D
authors.lastname: Xing