Spin transport and many-particle entanglement in cold atomic ensembles

Speaker
Dr. Hao Zhang
Affiliation
Martin Zwierlein小组
Time
2018-05-23 (Wed) 10:00
Location
上海研究院4号楼331会议室(理化楼2003室同步视频)
Abstract

Strongly-correlated cold atoms provide a powerful tool for studying quantum many-body physics and the nature of entanglement. I will describe two promising platforms for these goals. The first part of this talk will present an experiment on spin transport in an optical lattice. Using a microscope with single-atom resolution, we watch atoms of different spins move through the lattice under an external potential gradient and extract the transport coefficients of the Fermi-Hubbard 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.