Entanglement versus negative domains  of Wigner functions

Jens Peder Dahl; H. Mack; A. Wolf; W. P. Schleich

doi:10.1103/PhysRevA.74.042323

Entanglement versus negative domains of Wigner functions

Jens Peder Dahl, H. Mack, A. Wolf, W. P. Schleich

Department of Chemistry

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Abstract

We show that s waves, that is wave functions that only depend on a hyperradius, are entangled if and only if the corresponding Wigner functions exhibit negative domains. We illustrate this feature using a special class of s waves which allows us to perform the calculations analytically. This class includes a Gaussian, a maximally entangled as well as a "shell" state.

Original language	English
Journal	Physical Review A
Volume	74
Issue number	4
Pages (from-to)	042323
ISSN	2469-9926
DOIs	https://doi.org/10.1103/PhysRevA.74.042323
Publication status	Published - 2006

Bibliographical note

Keywords

STATES
SYSTEMS
BELL INEQUALITY
INTEGRALS

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10.1103/PhysRevA.74.042323

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http://link.aps.org/doi/10.1103/PhysRevA.74.042323

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Cite this

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KW - BELL INEQUALITY

KW - INTEGRALS

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