**【报告题目】****Creating deterministic collisions between two Rydberg electrons in a helium-like atom**

**【报告人】****Akhtar Munir ****博士后****, ****浙师大**

**【时间】****2020.12.30 ****下午 ****14:00 **

**【地点】科技楼，****29#-414**

**【报告摘要】**We aim to create deterministic collisions between two Rydberg electrons by applying a time-dependent external force to one or both electrons in a helium-like atom. Specifically, we have devised a mathematical framework for causing deterministic collisions by launching an inner orbiting electron to a higher energy such that this inner electron is guaranteed to collide with the outer electron. Our method first expresses the problem mathematically as coupled nonlinear differential equations with a time-dependent driving force and solves to find a feasible solution for the force function. Our approach to electron-electron collisions, pertinent to the case that both electrons are “planetary”, is a radical departure from standard electron-electron collision theory and could open new avenues for studying electronic properties of effective two-electron atoms.

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