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Artículo
Device-independent certification of two bits of randomness from one entangled bit and Gisin's elegant Bell inequality
(American Physical Society, 2018-01-16)
We prove that as conjectured by Acín et al. [Phys. Rev. A 93, 040102(R) (2016)], two bits of randomness can be certified in a device-independent way from one bit of entanglement using the maximal quantum violation of Gisin’s ...
Artículo
Experimental observation of quantum contextuality beyond Bell nonlocality
(American Physical Society, 2019-10-22)
Bell nonlocality and quantum contextuality are two important resources which, however, behave very differently in many tasks where the quantum correlation has an edge over its classical counterpart. In this work, we directly ...
Artículo
Exponentially decreasing critical detection efficiency for any Bell inequality
(American Physical Society, 2022-11-30)
We address the problem of closing the detection efficiency loophole in Bell experiments, which is crucial for real-world applications. Every Bell inequality has a critical detection efficiency η that must be surpassed to ...