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Quantum coherences of indistinguishable particles

Authors :
Kurt Busch
Ian A. Walmsley
Armando Perez-Leija
Jan Sperling
Source :
Physical Review A
Publication Year :
2017
Publisher :
American Physical Society (APS), 2017.

Abstract

We study different notions of quantum correlations in multipartite systems of distinguishable and indistinguishable particles. Based on the definition of quantum coherence for a single particle, we consider two possible extensions of this concept to the many-particle scenario and determine the influence of the exchange symmetry. Moreover, we characterize the relation of multiparticle coherence to the entanglement of the compound quantum system. To support our general treatment with examples, we consider the quantum correlations of a collection of qudits. The impact of local and global quantum superpositions on the different forms of quantum correlations is discussed. For differently correlated states in the bipartite and multipartite scenarios, we provide a comprehensive characterization of the various forms and origins of quantum correlations.

Details

ISSN :
24699934 and 24699926
Volume :
96
Database :
OpenAIRE
Journal :
Physical Review A
Accession number :
edsair.doi.dedup.....c247574c1dc241ad515810c2dad47d42
Full Text :
https://doi.org/10.1103/physreva.96.032334