报告时间：2017年4月12日下午16：00

报告地点：近代物理系210会议室

报告人：JILA institute 林毅恒 博士后

报告题目：“Charged or not charged: quantum manipulation with trapped single atoms”

欢迎感兴趣的同学来参加！

摘要：Recent  decades have seen techniques being rapidly developed for trapped  individual atoms, bringing in low system entropy and excellent control  of the couplings from the environment, making these atoms ideal building  blocks to assemble quantum systems from the bottom-up. This is  especially useful for the study of quantum mechanics and quantum  engineering. In this talk, I will describe two experiment platforms –  trapped atomic ions with electric potential and trapped neutral atoms  with optical tweezers, and along the line I will focus on three  experiments that shows that both platforms have demonstrated these  capabilities. For trapped ions, I will describe a recent demonstration  of high fidelity two-qubit quantum logic gate with two 9Be+ ions, and a  dissipative production of a maximally entangled state with a 9Be+ -24Mg+  -24Mg+ -9Be+ ion chain. For neutral atoms, I will describe a recent  experiment that forms an atomic 50:50 beam splitter by careful control  of trapping potentials, and based on this creating spin entanglement  between two 87Rb atoms with postselection.