A new nonclassicality measure for the quantum states of a bosonic field

Stephan De Bièvre (1) , Dmitri Horoshko (2) , Giuseppe Patera (2) , Mikhail Kolobov (2)

1 LPP - Laboratoire Paul Painlevé - UMR 8524
2 PhLAM - Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523

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.

Domaines: Physique Générale [physics.gen-ph]

Stephan De Bièvre, Dmitri Horoshko, Giuseppe Patera, Mikhail Kolobov. A new nonclassicality measure for the quantum states of a bosonic field. Quantum Technology International Conference 2018, Sep 2018, Paris, France. pp.00013, ⟨10.1051/epjconf/201919800013⟩. ⟨hal-02000013⟩