Instantaneous measurement of non-local variables
Quantum Physics
2013-05-29 v2
Abstract
It is shown, under the assumption of possibility to perform an arbitrary local operation, that all nonlocal variables related to two or more separate sites can be measured instantaneously, except for a finite time required for bringing to one location the classical records from these sites which yield the result of the measurement. It is a verification measurement: it yields reliably the eigenvalues of the nonlocal variables, but it does not prepare the eigenstates of the system.
Keywords
Cite
@article{arxiv.quant-ph/0111124,
title = {Instantaneous measurement of non-local variables},
author = {Lev Vaidman},
journal= {arXiv preprint arXiv:quant-ph/0111124},
year = {2013}
}
Comments
4 pages, revised version, to be published in PRL