Professor GERARDO ADESSO gerardo.adesso@nottingham.ac.uk
Professor of Mathematical Physics
Theory of genuine tripartite nonlocality of Gaussian states
Adesso, Gerardo; Piano, Samanta
Authors
Dr SAMANTA PIANO SAMANTA.PIANO@NOTTINGHAM.AC.UK
Professor of Metrology
Abstract
We investigate the genuine multipartite nonlocality of three-mode Gaussian states of continuous variable systems. For pure states, we present a simplified procedure to obtain the maximum violation of the Svetlichny inequality based on displaced parity measurements, and we analyze its interplay with genuine tripartite entanglement measured via Rényi-2 entropy. The maximum Svetlichny violation admits tight upper and lower bounds at fixed tripartite entanglement. For mixed states, no violation is possible when the purity falls below 0.86. We also explore a set of recently derived weaker inequalities for three-way nonlocality, finding violations for all tested pure states. Our results provide a strong signature for the nonclassical and nonlocal nature of Gaussian states despite their positive Wigner function, and lead to precise recipes for its experimental verification.
Citation
Adesso, G., & Piano, S. (2014). Theory of genuine tripartite nonlocality of Gaussian states. Physical Review Letters, 112(1), https://doi.org/10.1103/PhysRevLett.112.010401
Journal Article Type | Article |
---|---|
Acceptance Date | Nov 6, 2013 |
Publication Date | Jan 6, 2014 |
Deposit Date | Oct 12, 2017 |
Publicly Available Date | Mar 29, 2024 |
Journal | Physical Review Letters |
Print ISSN | 0031-9007 |
Electronic ISSN | 1079-7114 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 112 |
Issue | 1 |
DOI | https://doi.org/10.1103/PhysRevLett.112.010401 |
Public URL | https://nottingham-repository.worktribe.com/output/722183 |
Publisher URL | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.010401 |
Additional Information | © 2014 American Physical Society |
Files
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf
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