Authentication of Continuous-Variable Quantum Messages

June 30, 2025 Β· Declared Dead Β· πŸ› Quantum Information Processing

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Authors Mehmet Hüseyin Temel, Boris Škorić arXiv ID 2507.00095 Category quant-ph: Quantum Computing Cross-listed cs.CR Citations 0 Venue Quantum Information Processing Last Checked 5 months ago
Abstract
We introduce the first quantum authentication scheme for continuous-variable states. Our scheme is based on trap states, and is an adaptation of a discrete-variable scheme by Broadbent et al. (arXiv:1211.1080), but with more freedom in choosing the number of traps. We provide a security proof, mostly following the approach of Broadbent and Wainewright (arXiv:1607.03075). As a necessary ingredient for the proof we derive the continuous-variable analogue of the Pauli Twirl.
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