Estimating mixed quantum states
量子物理
2009-11-06 v2
摘要
We discuss single adaptive measurements for the estimation of mixed quantum states of qubits. The results are compared to the optimal estimation schemes using collective measurements. We also demonstrate that the advantage of collective measurements increases when the degree of mixing of the quantum states increases.
引用
@article{arxiv.quant-ph/0005090,
title = {Estimating mixed quantum states},
author = {Dietmar G. Fischer and Matthias Freyberger},
journal= {arXiv preprint arXiv:quant-ph/0005090},
year = {2009}
}
备注
RevTeX, 7 pages, 4 figures