Optimal anti-cloning for real state. (English) Zbl 1192.81114
Summary: We present two optimal quantum anti-cloning machines for real state in two dimensions, i.e., input state lying in the \(x\)-\(z\) equator. The first anti-cloning machine produces two outputs which are orthogonal to the input, and the second one produces two anti-parallel outputs for a single input state. The optimal fidelities are also derived.
MSC:
| 81P68 | Quantum computation |
References:
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