Negativity of the Wigner function as an indicator of non-classicality

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Authors

Karol yczkowski · Polish Academy of Sciences

Abstract

A measure of nonclassicality of quantum states based on the volume of the negative part of the Wigner function is proposed. We analyze this quantity for Fock states, squeezed displaced Fock states and cat-like states defined as coherent superposition of two Gaussian wave packets.

Topics & Keywords

Quantum Information and Cryptography Quantum optics and atomic interactions Quantum Mechanics and Applications

UN Sustainable Development Goals

Reduced inequalities

Publication Details

Published in: Journal of Optics B Quantum and Semiclassical Optics

Volume 6, Issue 10, pp. 396-404

DOI: 10.1088/1464-4266/6/10/003

Field-Weighted Citation Impact: 8.51