Detecting Bell Nonlocality Based on the Hardy Paradox

Autor: Huaixin Cao, Zhenzhu Dong, Ying Yang
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Theoretical Physics. 59:1644-1656
ISSN: 1572-9575
0020-7748
DOI: 10.1007/s10773-020-04432-1
Popis: In this paper, we aim to detecting Bell nonlocality based on the Hardy paradox. Firstly, motivated by the Hardy paradox, we derive some necessary conditions for a state to be Bell local and then obtain some sufficient conditions for discriminating Bell’s nonlocality; Secondly, we verify Bell nonlocality of any 2-qubit entangled pure state by the obtained sufficient conditions; Finally, we prove that any entangled pure state of a bipartite system can be projected as Bell nonlocal state.
Databáze: OpenAIRE
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