Genuine multipartite nonlocality of permutationally invariant Gaussian states
We investigate genuine multipartite nonlocality of pure permutationally invariant multimode Gaussian states of continuous variable systems, as detected by the violation of Svetlichny inequality. We identify the phase space settings leading to the largest violation of the inequality when using displa...
| Main Authors: | , , |
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| Format: | Article |
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American Physical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/40778/ |
| _version_ | 1848796131513860096 |
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| author | Xu, Buqing Tufarelli, Tommaso Adesso, Gerardo |
| author_facet | Xu, Buqing Tufarelli, Tommaso Adesso, Gerardo |
| author_sort | Xu, Buqing |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We investigate genuine multipartite nonlocality of pure permutationally invariant multimode Gaussian states of continuous variable systems, as detected by the violation of Svetlichny inequality. We identify the phase space settings leading to the largest violation of the inequality when using displaced parity measurements, distinguishing our results between the cases of even and odd total number of modes. We further consider pseudospin measurements and show that, for three-mode states with asymptotically large squeezing degree, particular settings of these measurements allow one to approach the maximum violation of Svetlichny inequality allowed by quantum mechanics. This indicates that the strongest manifestation of genuine multipartite quantum nonlocality is in principle verifiable on Gaussian state. |
| first_indexed | 2025-11-14T19:43:06Z |
| format | Article |
| id | nottingham-40778 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:43:06Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-407782020-05-04T18:30:19Z https://eprints.nottingham.ac.uk/40778/ Genuine multipartite nonlocality of permutationally invariant Gaussian states Xu, Buqing Tufarelli, Tommaso Adesso, Gerardo We investigate genuine multipartite nonlocality of pure permutationally invariant multimode Gaussian states of continuous variable systems, as detected by the violation of Svetlichny inequality. We identify the phase space settings leading to the largest violation of the inequality when using displaced parity measurements, distinguishing our results between the cases of even and odd total number of modes. We further consider pseudospin measurements and show that, for three-mode states with asymptotically large squeezing degree, particular settings of these measurements allow one to approach the maximum violation of Svetlichny inequality allowed by quantum mechanics. This indicates that the strongest manifestation of genuine multipartite quantum nonlocality is in principle verifiable on Gaussian state. American Physical Society 2017-01-18 Article PeerReviewed Xu, Buqing, Tufarelli, Tommaso and Adesso, Gerardo (2017) Genuine multipartite nonlocality of permutationally invariant Gaussian states. Physical Review A, 95 (1). 012124. ISSN 2469-9934 http://journals.aps.org/pra/abstract/10.1103/PhysRevA.95.012124 doi:10.1103/PhysRevA.95.012124 doi:10.1103/PhysRevA.95.012124 |
| spellingShingle | Xu, Buqing Tufarelli, Tommaso Adesso, Gerardo Genuine multipartite nonlocality of permutationally invariant Gaussian states |
| title | Genuine multipartite nonlocality of permutationally invariant Gaussian states |
| title_full | Genuine multipartite nonlocality of permutationally invariant Gaussian states |
| title_fullStr | Genuine multipartite nonlocality of permutationally invariant Gaussian states |
| title_full_unstemmed | Genuine multipartite nonlocality of permutationally invariant Gaussian states |
| title_short | Genuine multipartite nonlocality of permutationally invariant Gaussian states |
| title_sort | genuine multipartite nonlocality of permutationally invariant gaussian states |
| url | https://eprints.nottingham.ac.uk/40778/ https://eprints.nottingham.ac.uk/40778/ https://eprints.nottingham.ac.uk/40778/ |