Journal
PHYSICAL REVIEW LETTERS
Volume 124, Issue 2, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.124.020402
Keywords
-
Categories
Funding
- Foundation for Polish Science [First TEAM/2017-4/31]
- EU [First TEAM/2017-4/31]
- Spanish MINECO [QIBEQI FIS201680773-P, Severo Ochoa SEV-2015-0522]
- Fundacio Cellex
- Generalitat de Catalunya [SGR1381]
- Generalitat de Catalunya (CERCA Program)
- ERC CoG QITBOX
- AXA Chair in Quantum Information Science
- Swiss SNF (Starting grant DIAQ)
- COST Project [CA16218]
- Alexander von Humboldt foundation
- NANOCOHYBRI
- Marie-Sklodowska-Curie Grant [748549]
- Marie Curie Actions (MSCA) [748549] Funding Source: Marie Curie Actions (MSCA)
Ask authors/readers for more resources
Bell inequalities constitute a key tool in quantum information theory: they not only allow one to reveal nonlocality in composite quantum systems, but, more importantly, they can be used to certify relevant properties thereof. We provide a general construction of Bell inequalities that are maximally violated by the multiqubit graph states and can be used for their robust self-testing. Apart from their theoretical relevance, our inequalities offer two main advantages from an experimental viewpoint: (i) they present a significant reduction of the experimental effort needed to violate them, as the number of correlations they contain scales only linearly with the number of observers; (ii) numerical results indicate that the self-testing statements for graph states derived from our inequalities tolerate noise levels that are met by present experimental data. We also discuss possible generalizations of our approach to entangled states whose stabilizers are not tensor products of Pauli matrices. Our work introduces a promising approach for the certification of complex many-body quantum states.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available