How much state assignments can differ
量子物理
2009-11-07 v2
摘要
We derive necessary and sufficient conditions for a group of density matrices to characterize what different people may know about one and the same physical system.
引用
@article{arxiv.quant-ph/0109041,
title = {How much state assignments can differ},
author = {Todd A. Brun and J. Finkelstein and N. David Mermin},
journal= {arXiv preprint arXiv:quant-ph/0109041},
year = {2009}
}
备注
4 pages, no figures. Minor revisions. Accepted for publication in Physical Review A