'Free-Space' Photonic Quantum Link and Chiral Quantum Optics

We present the design of a chiral photonic quantum link, where distant atoms interact by exchanging photons propagating in a single direction in free-space. This is achieved by coupling each atom in a laser-assisted process to an atomic array acting as a quantum phased-array antenna. This provides a...

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Bibliographic Details
Published in:arXiv.org 2018-06
Main Authors: Grankin, A, Guimond, P O, Vasilyev, D V, Vermersch, B, Zoller, P
Format: Article
Language:English
Subjects:
Antenna arrays
Neutral atoms
Photonics
Photons
Quantum optics
Quantum theory
Online Access:Get full text
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Summary:We present the design of a chiral photonic quantum link, where distant atoms interact by exchanging photons propagating in a single direction in free-space. This is achieved by coupling each atom in a laser-assisted process to an atomic array acting as a quantum phased-array antenna. This provides a basic building block for quantum networks in free space, i.e. without requiring cavities or nanostructures, which we illustrate with high-fidelity quantum state transfer protocols. Our setup can be implemented with neutral atoms using Rydberg-dressed interactions.
ISSN:2331-8422
DOI:10.48550/arxiv.1802.05592