Optimal estimation of multiple phases
量子物理
2009-11-10 v1
摘要
We study the issue of simultaneous estimation of several phase shifts induced by commuting operators on a quantum state. We derive the optimal positive operator-valued measure corresponding to the multiple-phase estimation. In particular, we discuss the explicit case of the optimal detection of double phase for a system of identical qutrits and generalise these results to optimal multiple phase detection for d-dimensional quantum states.
引用
@article{arxiv.quant-ph/0304126,
title = {Optimal estimation of multiple phases},
author = {Chiara Macchiavello},
journal= {arXiv preprint arXiv:quant-ph/0304126},
year = {2009}
}
备注
6 pages