Optical Cavity-QED: quantum coupling between single photons and single atoms

Barak Dayan (Head of the Weizmann Quantum Optics Group, Weizmann Institute of Science)

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ABSTRACT: 

Cavity quantum electrodynamics (Cavity-QED) is the field describing the enhancement of quantum light and matter interactions by using resonant mode confinement up to a level allowing coherent coupling between single quantum emitters and single photons.
In particular, it enables deterministic quantum gates between single photons and single atoms, allowing the distribution of quantum information between material systems, as well as the construction of valuable photonic quantum states.
I will describe the basic concepts of optical cavity-QED in general, and the principles of photon-atom gates in particular.

RECOMMENDED PAPERS: 

“A passive photon-atom qubit SWAP operation”, Nature Physics 14, 996 (2018)

BIO:
Barak Dayan did his BSc in Physics and Math and MSc in Physics at the Hebrew University, and his PhD in Physics at the Weizmann Institute. In 2005 he joined Jeff Kimbles’s Quantum Optics group at Caltech as a postdoc and led the effort of cavity-QED with chip-based micro-resonators. In 2008 he returned to Weizmann and established the Quantum Optics Group there, which focuses on photon-atom quantum gates for atom-mediated photonic quantum computing.
Among the lab’s achievements are the first realization of single photon – controlled routing of photons (Science 2014), and the first demonstration of the photon-atom qubit SWAP gate (Nature Physics 2018).  Dayan is a Wolf foundation’s Krill prize laureate of 2015.