EPJ Web Conf.
Volume 198, 2019Quantum Technology International Conference 2018 (QTech 2018)
|Number of page(s)||7|
|Published online||15 January 2019|
A new nonclassicality measure for the quantum states of a bosonic field
Univ. Lille, CNRS, aUMR 8524 -Laboratoire Paul Painlevé, F-59000 Lille, France
2 Univ. Lille, CNRS, UMR 8523 -PhLAM -Physique des Lasers Atomes et Molécules, F-59000 Lille, France
3 B. I. Stepanov Institute of Physics, NASB, Nezavisimosti Ave. 68, Minsk 220072 Belarus
* e-mail: Stephan.De-Bievre@univ-lille.fr
Published online: 15 January 2019
We review a recently proposed measure of the nonclassicality of a bosonic field, based on the sensitivity of its quasi-probability distributions to ordering of the creation and annihilation operators. We illustrate the new measure by several concrete examples and show its advantages compared to other measures of nonclassicality such as the Wigner function negativity and the entanglement potential.
© The Authors, published by EDP Sciences, 2019
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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