Highly asymmetric quantum cloning in arbitrary dimension
量子物理
2007-05-23 v1
摘要
We investigate the universal asymmetric cloning of states in a Hilbert space of arbitrary dimension. We derive the class of optimal and fully asymmetric 1->3 cloners, which produce three copies, each having a different fidelity. A simple parametric expression for the maximum achievable cloning fidelity triplets is then provided. As a side-product, we also prove the optimality of the 1->2 asymmetric cloning machines that have been proposed in the literature.
引用
@article{arxiv.quant-ph/0505212,
title = {Highly asymmetric quantum cloning in arbitrary dimension},
author = {Jaromir Fiurasek and Radim Filip and Nicolas J. Cerf},
journal= {arXiv preprint arXiv:quant-ph/0505212},
year = {2007}
}
备注
5 pages, 1 figure, RevTeX 4