题目：High-resolution microscopy and cavity QED experiments in cold atoms

报告人：张昊研究员（中国工程物理研究院）

时间：2021年7月20日（周二）下午16:00

地点：理工楼1226

邀请人：安钧鸿教授

报告摘要

Strongly-correlated cold atoms provide a powerful tool for studying quantum many-body physics and the nature of entanglement. I will describe two promising experimental platforms for achieving these goals. The first part of this talk will present an experiment where we confine ultracold fermionic atoms in optical lattices to realize the Fermi-Hubbard model. We use a high-resolution microscope to image each individual atom with a spatial resolution of single lattice sites, and measure the density distributions, antiferromagnetic spin correlations and transport phenomena of this interacting lattice model. The second part of the talk will describe the generation of a many-particle entangled state, based on strong atom-light interactions in an optical cavity. We measure a negative-valued Wigner probability function, demonstrating the non-classical feature of a large atomic system.

个人简历

张昊，中国工程物理研究院研究生院研究员。2015年获得美国麻省理工学院博士学位。2015-2019年在麻省理工学院-哈佛大学冷原子中心从事博士后研究工作。研究方向为高空间分辨率原子成像，Cavity QED 以及强关联系统。 在Science、Nature、Phys. Rev. Lett.等期刊发表论文9篇。2019年入职中物院研究生院。