Encrypted Redundancy as a Diagnostic Resource: Relational Diagnosis in Quantum Encrypted Cloning
quant-ph, cs.CR, cs.DC
Submitted: 2026-08-29
Updated: 2026-08-29
Comments: 33 pages, 2 figures, 3 tables. Companion to arXiv:2604.10155 and arXiv:2605.27421, whose reduced-state characterizations are used here; those preprints have been revised (v2) to correct a sign in a worked example, and the corrected sign is the one adopted throughout this paper
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Terminology
Sources
- Experimental demonstration that qubits can be cloned at will, if encrypted with a single-use decryption key
- Cloning Encrypted Quantum States in Arbitrary Dimensions
- Encrypted Cloning, Absolute Maximal Entanglement and Quantum Secret Sharing
- Beyond the Canonical Protocol: Quantum Encrypted Cloning from Secret-Sharing Access Structures
- Encrypted clones can leak: Classification of informative subsets in Quantum Encrypted Cloning
- Full characterization of informative subsets in Quantum Encrypted Cloning
- Classification of informative subsets in quantum encrypted cloning on qudits
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