Contextual advantage for state-dependent cloning
نویسندگان
چکیده
منابع مشابه
Optimal universal and state-dependent quantum cloning
We establish the best possible approximation to a perfect quantum cloning machine which produces two clones out of a single input. We analyze both universal and state-dependent cloners. The maximal fidelity of cloning is shown to be 5/6 for universal cloners. It can be achieved either by a special unitary evolution or by a novel teleportation scheme. We construct the optimal state-dependent clo...
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ژورنال
عنوان ژورنال: Quantum
سال: 2020
ISSN: 2521-327X
DOI: 10.22331/q-2020-04-27-258