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Entanglement generation using single-photon pulse reflection in realistic networks

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2025

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Institutionen der Bundesrepublik Deutschland: 13N16212

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Physical Review A. American Physical Society (APS). 2025, 111(1), 012612. ISSN 2469-9926. eISSN 2469-9934. Verfügbar unter: doi: 10.1103/physreva.111.012612

Zusammenfassung

A general entanglement generation protocol between remote stationary qubits using single-photon reflection in a photonic network is explored theoretically. The nodes of the network consist of single qubits that are typically represented by the spin of a color center, each localized in a separate optical cavity and linked to other nodes via photonic links such as optical fibers. We derive a model applicable to a wide range of parameters and scenarios to describe the nodes and the local spin-photon interaction accounting for the pulsed (finite-bandwidth) nature of flying single photons while optimizing the rate and fidelity. We investigate entanglement generation between remote qubits and tailor protocols to a variety of physical implementations with different properties. Of particular interest is the regime of weak coupling and low cooperativity between the spin and cavity, which is relevant in the cases of the nitrogen- and silicon-vacancy centers in diamond. We also take into account the variability of the properties between realistic (stationary) nodes.

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ISO 690OMLOR, Ferdinand, Benedikt TISSOT, Guido BURKARD, 2025. Entanglement generation using single-photon pulse reflection in realistic networks. In: Physical Review A. American Physical Society (APS). 2025, 111(1), 012612. ISSN 2469-9926. eISSN 2469-9934. Verfügbar unter: doi: 10.1103/physreva.111.012612
BibTex
@article{Omlor2025-01-10Entan-71949,
  title={Entanglement generation using single-photon pulse reflection in realistic networks},
  year={2025},
  doi={10.1103/physreva.111.012612},
  number={1},
  volume={111},
  issn={2469-9926},
  journal={Physical Review A},
  author={Omlor, Ferdinand and Tissot, Benedikt and Burkard, Guido},
  note={Article Number: 012612}
}
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