Superatom picture of collective nonclassical light emission and dipole blockade in atom arrays

Williamson, L. A., Borgh, M. O. and Ruostekoski, J. (2020) Superatom picture of collective nonclassical light emission and dipole blockade in atom arrays. Physical Review Letters, 125 (7). ISSN 0031-9007

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Abstract

We show that two-time, second-order correlations of scattered photons from planar arrays and chains of atoms display nonclassical features that can be described by a superatom picture of the canonical single-atom g2(τ) resonance fluorescence result. For the superatom, the single-atom linewidth is replaced by the linewidth of the underlying collective low light-intensity eigenmode. Strong light-induced dipole-dipole interactions lead to a correlated response, suppressed joint photon detection events, and dipole blockade that inhibits multiple excitations of the collective atomic state. For targeted subradiant modes, the nonclassical nature of emitted light can be dramatically enhanced even compared with that of a single atom.

Item Type: Article
Uncontrolled Keywords: quantum optics,quantum physics,collective effects in quantum optics,optics and photonics,quantum description of light-matter interaction,quantum states of light,atomic and molecular physics, and optics ,/dk/atira/pure/subjectarea/asjc/3100/3107
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Depositing User: LivePure Connector
Date Deposited: 07 Sep 2020 23:58
Last Modified: 24 Sep 2020 00:05
URI: https://ueaeprints.uea.ac.uk/id/eprint/76793
DOI: 10.1103/PhysRevLett.125.073602

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