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Experimental test o...
Experimental test of maximal tripartite nonlocality using an entangled state and local measurements that are maximally incompatible
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- Anwer, Hammad (author)
- Stockholms universitet,Fysikum
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- Nawareg, Mohamed (author)
- Stockholms universitet,Fysikum,Damietta University, Egypt
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Cabello, Adán (author)
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- Bourennane, Mohamed (author)
- Stockholms universitet,Fysikum
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(creator_code:org_t)
- 2019
- 2019
- English.
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In: Physical Review A: covering atomic, molecular, and optical physics and quantum information. - 2469-9926 .- 2469-9934. ; 100:2
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The only known qubit states that produce maximal quantum violation of a tight Bell inequality with maximally incompatible local measurements are Bell states, Greenberger-Horne-Zeilinger states, and a recently identified three-qubit state called vertical bar S >. Here we report the results of an experiment for preparing vertical bar S > and testing the maximum quantum violation of the corresponding tripartite Bell inequality. Using a heralded source of three entangled photons and three tunable polarization-dependent filters, we experimentally prepare vertical bar S > with 0.924 fidelity. Using maximally incompatible measurements for the three parties, we observe a value of T-26 = 7.30 +/- 0.06, which clearly violates the tight Bell inequality T-26 <= 5. In addition, we show that our setup allows preparing multipartite states that were inaccessible with previous methods and are useful for quantum information and metrology.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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