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19 July 2022 Optimizing quantum dots for quantum cryptography and blind quantum computing
Michal Vyvlecka, Mathieu Bozzio, Michael Cosacchi, Cornelius Nawrath, Sophie-Elisabeth Lerchbaumer, Atul Mantri, Tim Seidelmann, Jaun C. Loredo, Simone L. Portalupi, Vollrath M. Axt, Peter Michler, Philip Walther
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Proceedings Volume PC12243, Photonics for Quantum 2022; PC1224311 (2022) https://doi.org/10.1117/12.2632305
Event: Photonics for Quantum, 2022, Rochester, NY, United States
Abstract
Quantum cryptography can provide security guarantees against adversaries with unlimited computational power, which motivates research towards a quantum internet. However, widely used Poisson-distributed sources limit the maximal security level and communication rate of such quantum networks. This can be overcome by quantum dot single-photon sources. We show that quantum dots provide additional security benefits based on the tunability of number state coherence. We identify the optimal quantum dot setting for the main quantum-cryptographic primitives and benchmark their performance. Our work is extended by results on network-based blind quantum computing with classical clients, which will make secure quantum computing more accessible.
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Michal Vyvlecka, Mathieu Bozzio, Michael Cosacchi, Cornelius Nawrath, Sophie-Elisabeth Lerchbaumer, Atul Mantri, Tim Seidelmann, Jaun C. Loredo, Simone L. Portalupi, Vollrath M. Axt, Peter Michler, and Philip Walther "Optimizing quantum dots for quantum cryptography and blind quantum computing", Proc. SPIE PC12243, Photonics for Quantum 2022, PC1224311 (19 July 2022); https://doi.org/10.1117/12.2632305
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KEYWORDS
Quantum computing
Quantum dots
Quantum cryptography
Information security
Network security
Photons
Internet
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