Presentation
19 July 2022 Optimizing quantum dots for quantum cryptography and blind quantum computing
Author Affiliations +
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.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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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