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arXiv · 2004.02381

A Polarization Encoded Photon-to-Spin Interface

Kevin C. Chen·Eric Bersin·Dirk Englund
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Abstract

We propose an integrated photonics device for mapping qubits encoded in the polarization of a photon onto the spin state of a solid-state defect coupled to a photonic crystal cavity: a `Polarization-Encoded Photon-to-Spin Interface' (PEPSI). We perform a theoretical analysis of the state fidelity's dependence on the device's polarization extinction ratio and atom-cavity cooperativity. Furthermore, we explore the rate-fidelity trade-off through analytical and numerical models. In simulation, we show that our design enables efficient, high fidelity photon-to-spin mapping.

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Kevin C. Chen, Eric Bersin, Dirk Englund. 2020-04-06. A Polarization Encoded Photon-to-Spin Interface. https://doi.org/10.1038/s41534-020-00337-3

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