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Photonic Quantum Computing

Chiral Quantum-Optical Elements for Waveguide-QED with Sub-wavelength Rydberg-Atom Arrays

arXiv
Authors: Lida Zhang, Fan Yang, Klaus Mølmer, Thomas Pohl

Year

2024

Paper ID

65912

Status

Preprint

Abstract Read

~2 min

Abstract Words

95

Citations

N/A

Abstract

We describe an approach to achieve near-perfect unidirectional light-matter coupling to an effective quantum emitter that is formed by a subwavelength array of atoms in the Rydberg-blockade regime. The nonlinear reflection and transmission of such two-dimensional superatoms are exploited in different interferometric setups for the deterministic generation of tunable single photons and entangling two-photon operations with high fidelities, mathcal{F}gtrsim0.999. The described setup can function as a versatile nonlinear optical element in a free-space photonic quantum network with simple linear elements and without the need of additional mode confinement, optical resonators, or optical isolators.

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  • We describe an approach to achieve near-perfect unidirectional light-matter coupling to an effective quantum emitter that is formed by a subwavelength array of atoms in the...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2407.01133 [2] arXiv https://arxiv.org/abs/2407.01133 [3] Publisher https://arxiv.org/abs/2407.01133

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