Measuring Unrecorded Measurement
Quantum Physics
2016-09-21 v1
Abstract
Projective (Von Neumann) Measurement of an operator (i.e. a dynamical variable) selected from a prescribed set of operators is termed unrecorded measurement (URM) when both the selected operator and the measurement outcome are unknown, i.e. "lost". Within classical physics a URM is completely inconsequential: the state is unaffected by measurement. Within quantum physics a measurement leaves a mark. The present study provides protocols that allow retrieval of some of the data lost in a URM.
Cite
@article{arxiv.1604.04110,
title = {Measuring Unrecorded Measurement},
author = {M. Revzen and A. Mann},
journal= {arXiv preprint arXiv:1604.04110},
year = {2016}
}
Comments
4 pages