全校师生：

云顶集团定于2019年04月05日举办研究生灵犀学术殿堂——Sudeshna Sinha报告会，现将有关事项通知如下：

1.报告会简介

报告人：Sudeshna Sinha教授

时间：2019年04月05日（星期五） 上午10:30（开始时间）

地点：友谊校区航空楼A310

主题：混沌吸引子跳跃产生逻辑运算

Chaotic attractor hopping yields logic operations

内容简介：Certain nonlinear systems can switch between dynamical attractors

occupying different regions of phase space, under variation of parameters or initial

states. In this work we exploit this feature to obtain reliable logic operations. With

logic output 0/1 mapped to dynamical attractors bounded in distinct regions of phase

space, and logic inputs encoded by a very small bias parameter, we explicitly demonstrate that the system hops consistently in response to an external input stream,

operating effectively as a reliable logic gate. This system offers the advantage that

very low-amplitude inputs yield highly amplified outputs. Additionally, different

dynamical variables in the system yield complementary logic operations in parallel.

Further, we show that in certain parameter regions noise aids the reliability of logic

operations, and is actually necessary for obtaining consistent outputs. This leads us to

a generalization of the concept of Logical Stochastic Resonance to attractors more

complex than fixed point states, such as periodic or chaotic attractors. Lastly, the

results are verified in electronic circuit experiments, demonstrating the robustness of

the phenomena

2.欢迎各学院师生前来听报告。报告会期间请关闭手机或将手机调至静音模式。

党委学生工作部

理学院

2019年04月08日

报告人简介

Sudeshna Sinha，印度科学教育与研究学院(IISER)物理科学系教授，院长(教务)，FASc, FNA, FTWAS, JC Bose National Fellow; Sudeshna Sinha教授研究领域是非线性动力学和随机共振。研究课题是时变网络，或利用噪声和非线性来构建逻辑门。