Quantum Optics Seminar: Cavity QED with atomic arrays

David Castells (MPQ)
We will be looking into two-dimensional arrays of atoms in an optical lattice with sub-wavelength spacing.

David Castells (MPQ)
Group seminar (hybrid format: online/seminar room B2.46)
Fri, 16 December 2021, 14:30 pm (MEZ)

Abstract:

We will be looking into two-dimensional arrays of atoms in an optical lattice with sub-wavelength spacing. Such arrays have been shown to act as an efficient mirror [1, 2], as demonstrated recently in experiments [3]. We are interested in whether such setup can be used to do cavity QED, and whether it presents any advantage as compared to using conventional mirrors.
In this seminar, I will go over a model used to study this system and discuss some preliminary results, as well as reviewing related work in the literature [4]. After this, we will be ready for an open discussion of potential directions and implementations of such setups.

[1] Robert J Bettles, et. al. Enhanced optical cross section via collective coupling of atomic dipoles in a 2d array. Physical review letters, 116(10):103602, 2016.
[2] Ephraim Shahmoon, et. al. Cooperative resonances in light scattering from two-dimensional atomic arrays. Physical review letters, 118(11):113601, 2017.
[3] Jun Rui, et. al. A subradiant optical mirror formed by a single structured atomic layer. Nature, 583(7816):369–374, 2020.
[4] P.-O. Guimond, et al. "Subradiant Bell states in distant atomic arrays." Physical review letters 122.9 (2019): 093601.