Unauthorized subsets in qudit encrypted cloning are uninformative exactly when a congruence system has only the trivial solution, classified by a greatest-common-divisor condition that extends the qubit parity case.
Encrypted qubits can be cloned.Physical Review Letters, 136(1):010801
2 Pith papers cite this work. Polarity classification is still indexing.
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Non-authorized subsets in quantum encrypted cloning can retain restricted residual information about the input state in a parity-dependent pattern, revealing a structural confidentiality limitation.
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Classification of informative subsets in quantum encrypted cloning on qudits
Unauthorized subsets in qudit encrypted cloning are uninformative exactly when a congruence system has only the trivial solution, classified by a greatest-common-divisor condition that extends the qubit parity case.
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Encrypted clones can leak: Classification of informative subsets in Quantum Encrypted Cloning
Non-authorized subsets in quantum encrypted cloning can retain restricted residual information about the input state in a parity-dependent pattern, revealing a structural confidentiality limitation.