Engineering atom-nanphotonic hybrid lattices

Join Zoom Meeting: https://purdue-edu.zoom.us/j/93857631004

Abstract: Cold neutral atoms trapped and interfaced with light in photonic circuits form exciting hybrid quantum platforms for applications in quantum optics and quantum information science. The indistinguishability and long coherence time of neutral atoms makes an atom-nanophotonic hybrid platform inherently scalable, and by itself a strongly coupled many-body system. In this talk, I will describe the design and realization of an efficiently-coupled microring photonic quantum circuit for strong atom–light interactions. This novel photonic platform is compatible with cold atom physics, including laser cooling and trapping, and supports high microring coupling efficiency at relevant atomic spectral lines, thus holding promises for realizing a robust atom-nanophotonics hybrid quantum device. I will talk about our current progress in integrating this microring photonic circuit in a cold atom experiment and discuss about possible other applications in chiral quantum optics, cold molecule synthesis and quantum state detection.

Bio: Chen-Lung Hung is an assistant professor of Physics and Astronomy at Purdue University. His research area includes ultracold atomic physics, quantum optics, and cold atom-photonics integration, with a special focus on interfacing ultracold atoms with nanophotonic circuits for quantum simulation of long-range quantum magnetism. His group is also using ultracold atoms trapped in optical lattices and optical tweezers to study quantum many-body dynamics and physics of strong correlation. For these projects, he is a recipient of the AFOSR young investigator award (2017), the NSF CAREER award (2019), and a Keck Foundation research grant (2019).