General phase-covariant quantum cloning

General phase-covariant quantum cloning

Phase-covariant quantum cloning has important applications in quantum cryptography. This paper proposes the unitary transformation of the optimal 1 → 2 general phase covariant quantum cloning in two dimensions and obtains the maximal fidelity of copies. In addition, an experimental scheme is designe...

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Veröffentlicht in:AIP advances 2024-12, Vol.14 (12), p.125106-125106-5
Hauptverfasser: Li, Lan-Lan, Zhang, Wen-Hai, Zhang, Ke, Fan, Cheng-Yu
Format: Artikel
Sprache:eng
Schlagworte:
Cloning
Optical components
Quantum cryptography
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Zusammenfassung:Phase-covariant quantum cloning has important applications in quantum cryptography. This paper proposes the unitary transformation of the optimal 1 → 2 general phase covariant quantum cloning in two dimensions and obtains the maximal fidelity of copies. In addition, an experimental scheme is designed to implement this unitary transformation using linear optical elements, and the scheme is feasible under the present experimental technology.
ISSN:2158-3226
2158-3226
DOI:10.1063/5.0244043