Quantification of Continuous Variable Entanglement with only Two Types of Simple Measurements
Quantum Physics
2015-06-26 v3
Abstract
Here we propose an experimental set-up in which it is possible to measure the entanglement of a two-mode Gaussian state, be it pure or mixed, using only simple linear optical devices. After a proper unitary manipulation of the two-mode Gaussian state only number and purity measurements of just one of the modes suffice to give us a complete and exact knowledge of the state's entanglement.
Cite
@article{arxiv.quant-ph/0608184,
title = {Quantification of Continuous Variable Entanglement with only Two Types of Simple Measurements},
author = {Gustavo Rigolin and Marcos C. de Oliveira},
journal= {arXiv preprint arXiv:quant-ph/0608184},
year = {2015}
}
Comments
v1: 4 pages, 1 figure, RevTex4; v2: Title and abstract changed, new discussion paragraph added; v3: published version