Sun Guozhu, Dong Ning, Mao Guangfeng, Chen Jian, Xu Weiwei, Ji Zhengming, Kang Lin, Wu Peiheng, Yu Yang, Xing Dingyu
Research Institute of Superconductor Electronics, Department of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, China.
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Feb;75(2 Pt 1):021107. doi: 10.1103/PhysRevE.75.021107. Epub 2007 Feb 9.
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.
在一个欠阻尼真实物理系统，即约瑟夫森隧道结中，观察到了共振激活和噪声增强稳定性。当施加一个微弱的正弦驱动力时，从势阱的热激活逃逸呈现出作为驱动频率函数的类似共振行为。这些共振也关键地取决于系统的初始条件。数值模拟与实验结果显示出良好的一致性。
