Coupling Rydberg atoms to a superconducting millimeter-wave resonator: quantum transduction and progress towards spin-squeezing
ORAL
Abstract
High quality factors of superconducting resonators and strong atomic transitions in the millimeter-wave and microwave regime can enable strong interactions in a neutral atom cavity-QED system. Our platform features a unique 3D superconducting millimeter-wave resonator at 5 K intersecting with an optical Fabry-Perot cavity, allowing for atoms at the intersection to interact with both cavities simultaneously. Harnessing the strengths of our system, we recently demonstrated quantum transduction between mm-wave photons and optical photons using Rydberg atoms. The interactions between the mm-wave cavity and atoms can also enable spin-squeezing on the ground-Rydberg transition, with potential applications for entanglement-enhanced quantum sensing and metrology. In the talk, I will describe our platform and present recent transduction results from the experiment. I will also discuss our efforts towards spin squeezing, including our plans to upgrade to colder resonator temperatures for stronger atom-cavity coupling.
*Funding for this research was provided by the National Science Foundation (NSF) through QLCI-HQAN grant 2016136, the Army Research Office through MURI grant W911NF2010136, and the Air Force Office of Scientific Research through MURI grant FA9550-16-1-0323. It was also supported by the University of Chicago Materials Research Science and Engineering Center, which is funded by the NSF under award DMR-1420709.
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Publication: Quantum-limited millimeter wave to optical transduction. arXiv:2207.10121.
Presenters
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Lavanya Taneja
- University of Chicago