Perfect correlations between noncommuting observables
Quantum Physics
2009-11-10 v4
Abstract
The problem as to when two noncommuting observables are considered to have the same value arises commonly, but shows a nontrivial difficulty. Here, an answer is given by establishing the notion of perfect correlations between noncommuting observables, and applied to obtain a criterion for precise measurements of a given observable in a given state.
Keywords
Cite
@article{arxiv.quant-ph/0310072,
title = {Perfect correlations between noncommuting observables},
author = {Masanao Ozawa},
journal= {arXiv preprint arXiv:quant-ph/0310072},
year = {2009}
}
Comments
7 pages, Revtex4, v3: added a section on conventional models of measurements