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Quantum communication networks with defects in silicon carbide

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2024

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Ecker, Sebastian
Fink, Matthias
Scheidl, Thomas
Sohr, Philipp
Ursin, Rupert
Arshad, Muhammad Junaid
Bonato, Cristian
Trupke, Michael
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European Union (EU): 862721

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QuanTELCO
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Zusammenfassung

Quantum communication promises unprecedented communication capabilities enabled by the transmission of quantum states of light. However, current implementations face severe limitations in communication distance due to photon loss. Silicon carbide (SiC) defects have emerged as a promising quantum device platform, offering strong optical transitions, long spin coherence lifetimes and the opportunity for integration with semiconductor devices. Some defects with optical transitions in the telecom range have been identified, allowing to interface with fiber networks without the need for wavelength conversion. These unique properties make SiC an attractive platform for the implementation of quantum nodes for quantum communication networks. We provide an overview of the most prominent defects in SiC and their implementation in spin-photon interfaces. Furthermore, we model a memory-enhanced quantum communication protocol in order to extract the parameters required to surpass a direct point-to-point link performance. Based on these insights, we summarize the key steps required towards the deployment of SiC devices in large-scale quantum communication networks.

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530 Physik

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ISO 690ECKER, Sebastian, Matthias FINK, Thomas SCHEIDL, Philipp SOHR, Rupert URSIN, Muhammad Junaid ARSHAD, Cristian BONATO, Guido BURKARD, Benedikt TISSOT, Michael TRUPKE, 2024. Quantum communication networks with defects in silicon carbide
BibTex
@unpublished{Ecker2024Quant-71309,
  year={2024},
  doi={10.48550/arXiv.2403.03284},
  title={Quantum communication networks with defects in silicon carbide},
  author={Ecker, Sebastian and Fink, Matthias and Scheidl, Thomas and Sohr, Philipp and Ursin, Rupert and Arshad, Muhammad Junaid and Bonato, Cristian and Burkard, Guido and Tissot, Benedikt and Trupke, Michael}
}
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