Artículo
Quantum nonlocality via local contextuality with qubit-qubit entanglement
Autor/es | Saha, Debashis
Cabello Quintero, Adán Choudhary, Sujit K. Pawłowski, Marcin |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 2016-04-28 |
Fecha de depósito | 2024-02-15 |
Publicado en |
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Resumen | Quantum nonlocality can be revealed “via local contextuality” in qudit-qudit entangled systems with
d
>
2
, that is, through the violation of inequalities containing Alice-Bob correlations that admit a local description, ... Quantum nonlocality can be revealed “via local contextuality” in qudit-qudit entangled systems with d > 2 , that is, through the violation of inequalities containing Alice-Bob correlations that admit a local description, and Alice-Alice correlations (between the results of sequences of measurements on Alice's subsystem) that admit a local (but contextual) description. A fundamental question to understand the respective roles of entanglement and local contextuality is whether nonlocality via local contextuality exists when the parties have only qubit-qubit entanglement. Here we respond affirmatively to this question. This result further clarifies the connection between contextuality and nonlocality and opens the door for observing nonlocality via local contextuality in actual experiments. |
Agencias financiadoras | Ministerio de Economía y Competitividad (MINECO). España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) |
Identificador del proyecto | FIS2014-60843
2013/08/M/ST2/00626 |
Cita | Saha, D., Cabello Quintero, A., Choudhary, S.K. y Pawłowski, M. (2016). Quantum nonlocality via local contextuality with qubit-qubit entanglement. Physical Review A (atomic, molecular, and optical physics and quantum information), 93 (4), 042123-1-042123-5. https://doi.org/10.1103/PhysRevA.93.042123. |
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