2000/06/30 by Yun‐Feng Huang, Yun-Feng Huang, Wanli Li +7 · 1 citation
Computer Science · Mathematics · Physics and Astronomy · #Cloning (programming) #Computer science #Fidelity #Mathematics #Physics #Quantum #Quantum Computing Algorithms and Architecture #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum cloning #Quantum error correction #Quantum mechanics #Qubit #Realization (probability) #Telecommunications #quant-ph
paper · pdf · doi:10.1103/physreva.64.012315
published as Phys. Rev. A 64, 012315 (2001) · 5 Pages, 2 Figures
openalex publication_date 2001/06/13 · arxiv created 2001/07/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Beyond the no-cloning theorem, the universal symmetric quantum cloning machine was first addressed by Bu\ifmmode \checkz\else \vz\fiek and Hillery. Here, we realized the \stackrel\ensuremath→12 qubit Bu\ifmmode \checkz\else \vz\fiek-Hillery cloning machine with linear optical devices. This method relies on the representation of several qubits by a single photon. We showed that the fidelities between the two output qubits and the original qubit are both (5)/(6) (which proved to be the optimal fidelity of \stackrel\ensuremath→12 qubit universal cloner) for arbitrary input pure states.