Certification of non-classicality in all links of a photonic star network without assuming quantum mechanics
(2023) In Nature Communications 14(1).- Abstract
Networks composed of independent sources of entangled particles that connect distant users are a rapidly developing quantum technology and an increasingly promising test-bed for fundamental physics. Here we address the certification of their post-classical properties through demonstrations of full network nonlocality. Full network nonlocality goes beyond standard nonlocality in networks by falsifying any model in which at least one source is classical, even if all the other sources are limited only by the no-signaling principle. We report on the observation of full network nonlocality in a star-shaped network featuring three independent sources of photonic qubits and joint three-qubit entanglement-swapping measurements. Our results... (More)
Networks composed of independent sources of entangled particles that connect distant users are a rapidly developing quantum technology and an increasingly promising test-bed for fundamental physics. Here we address the certification of their post-classical properties through demonstrations of full network nonlocality. Full network nonlocality goes beyond standard nonlocality in networks by falsifying any model in which at least one source is classical, even if all the other sources are limited only by the no-signaling principle. We report on the observation of full network nonlocality in a star-shaped network featuring three independent sources of photonic qubits and joint three-qubit entanglement-swapping measurements. Our results demonstrate that experimental observation of full network nonlocality beyond the bilocal scenario is possible with current technology.
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- author
- Wang, Ning Ning ; Pozas-Kerstjens, Alejandro ; Zhang, Chao ; Liu, Bi Heng ; Huang, Yun Feng ; Li, Chuan Feng ; Guo, Guang Can ; Gisin, Nicolas and Tavakoli, Armin LU
- organization
- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Nature Communications
- volume
- 14
- issue
- 1
- article number
- 2153
- publisher
- Nature Publishing Group
- external identifiers
-
- pmid:37059704
- scopus:85152523360
- ISSN
- 2041-1723
- DOI
- 10.1038/s41467-023-37842-w
- language
- English
- LU publication?
- yes
- id
- ba0ffa62-d158-4121-a78d-7d545ddb534b
- date added to LUP
- 2023-07-12 14:14:50
- date last changed
- 2024-04-19 23:20:07
@article{ba0ffa62-d158-4121-a78d-7d545ddb534b,
abstract = {{<p>Networks composed of independent sources of entangled particles that connect distant users are a rapidly developing quantum technology and an increasingly promising test-bed for fundamental physics. Here we address the certification of their post-classical properties through demonstrations of full network nonlocality. Full network nonlocality goes beyond standard nonlocality in networks by falsifying any model in which at least one source is classical, even if all the other sources are limited only by the no-signaling principle. We report on the observation of full network nonlocality in a star-shaped network featuring three independent sources of photonic qubits and joint three-qubit entanglement-swapping measurements. Our results demonstrate that experimental observation of full network nonlocality beyond the bilocal scenario is possible with current technology.</p>}},
author = {{Wang, Ning Ning and Pozas-Kerstjens, Alejandro and Zhang, Chao and Liu, Bi Heng and Huang, Yun Feng and Li, Chuan Feng and Guo, Guang Can and Gisin, Nicolas and Tavakoli, Armin}},
issn = {{2041-1723}},
language = {{eng}},
number = {{1}},
publisher = {{Nature Publishing Group}},
series = {{Nature Communications}},
title = {{Certification of non-classicality in all links of a photonic star network without assuming quantum mechanics}},
url = {{http://dx.doi.org/10.1038/s41467-023-37842-w}},
doi = {{10.1038/s41467-023-37842-w}},
volume = {{14}},
year = {{2023}},
}