依据态变换器区分可观测量的量子测量
量子物理
2007-05-23 v1
摘要
引入态变换器（即量子测量的第一Kraus表示）的现代框架，并将其与已知的教科书概念及测量-相互作用演化（第二Kraus表示）相关联。在此框架中，普通（有别于广义）可观测量的已知测量类型由必要充分条件区分。从而，可重复、不可重复和理想测量在代数与几何上均借助态变换器的极因子刻画。
引用
@article{arxiv.quant-ph/0403101,
title = {Distinguishing quantum measurements of observables in terms of state transformers},
author = {Fedor Herbut},
journal= {arXiv preprint arXiv:quant-ph/0403101},
year = {2007}
}
备注
13 pages, Latex2e. Written for the Am. J. Phys.; after three resubmissions, when both referees were satisfied,it was rejected. It is put on the web to do justice to the great efforts of the referees and the author