Quantum information aspects of approximate position measurement
Quantum Physics
2022-04-04 v1 Mathematical Physics
math.MP
Abstract
We perform a quantum information analysis for multi-mode Gaussian approximate position measurements, underlying noisy homodyning in quantum optics. The "Gaussian maximizer" property is established for the entropy reduction of these measurements which provides explicit formulas for computations including their entanglement-assisted capacity. The case of one mode is discussed in detail.
Cite
@article{arxiv.2006.04383,
title = {Quantum information aspects of approximate position measurement},
author = {A. S. Holevo and V. I. Yashin},
journal= {arXiv preprint arXiv:2006.04383},
year = {2022}
}
Comments
18 pages, one figure