Group Seminar via Zoom: A New Platform for Cavity Quantum Electrodynamics with Rydberg Atom Arrays

November 02, 2021

Yu-Ting Chen, MIT
Group Seminar via video conference (Zoom)
Tuesday, November 2, 3:00 p.m (MEZ)

Due to the Covid-19 pandemic, the group seminar will be a hybrid event, allowing participants to attend the seminar virtually and in-person. This procedure enables us to continue our research, enhance discussions and exchange important information.


In cavity quantum electrodynamics (cavity QED) systems, the realization of strong coupling between light and atoms plays a critical role in studying quantum optics and entanglement. At the same time, the Rydberg atom arrays provide a promising platform for exploring many-body physics. However, with the Rydberg-mediated interactions, the atoms mainly interact with each other locally. Combining the cavity QED and Rydberg arrays systems opens up new research directions in many-body physics with long-range interactions, creating a fully connected quantum network. Here, we introduce a new high-finesse cavity QED setup designed for Rydberg arrays. The setup has a state-of-the-art single-atom cooperativity and will allow more than 50 atoms in the array.  In addition, this platform enables the creation of the Rydberg superatom, an ensemble of atoms acting as a two-level system. Combining the superatoms with the high-finesse cavity, we expect to increase the single-atom cooperativity by 2 or 3 orders of magnitude. I will present the progress toward realizing strong coupling using this setup. I will also discuss the potential applications of studying long-range spin physics.

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