Quantum Anti-Cloning
Quantum Physics
2007-05-23 v2
Abstract
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.
Cite
@article{arxiv.quant-ph/0001105,
title = {Quantum Anti-Cloning},
author = {David D. Song and Lucien Hardy},
journal= {arXiv preprint arXiv:quant-ph/0001105},
year = {2007}
}
Comments
10 pages, reference updated