Quantum Anti-Cloning

Details Quantum Anti-Cloning Quantum Anti-Cloning

2000-01-28

arxiv.org/abs/quant-ph/0001105v2

Physics

Quantum Physics

10 pages, reference updated

Scientific paper

We derive the transformation for the optimal universal quantum anti-cloner which produces two anti-parallel outputs for a single input state. The fidelity is shown to be 2/3 which is same as the measurement fidelity. We consider a probabilistic quantum anti-cloner and show quantum states can be anti-cloned exactly with non-zero probability and its efficiency is higher than the efficiency of distinguishing between the two states.

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