Artículo
Two qubits of a W state violate Bell's inequality beyond Cirel'son's bound
Autor/es | Cabello Quintero, Adán |
Departamento | Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 2002-10 |
Fecha de depósito | 2024-02-27 |
Publicado en |
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Resumen | It is shown that the correlations between two qubits selected from a trio prepared in a W state violate the Clauser-Horne-Shimony-Holt inequality more than the correlations between two qubits in any quantum state. Such a ... It is shown that the correlations between two qubits selected from a trio prepared in a W state violate the Clauser-Horne-Shimony-Holt inequality more than the correlations between two qubits in any quantum state. Such a violation beyond Cirel’son’s bound is smaller than the one achieved by two qubits selected from a trio in a Greenberger-Horne-Zeilinger state [A. Cabello, Phys. Rev. Lett. 88, 060403 (2002)]. However, it has the advantage that all local observers can know from their own measurements whether or not their qubits belong to the selected pair. |
Agencias financiadoras | Ministerio de Ciencia y Tecnología (MCYT). España Junta de Andalucía |
Identificador del proyecto | BFM2001-3943
FQM-239 |
Cita | Cabello Quintero, A. (2002). Two qubits of a W state violate Bell's inequality beyond Cirel'son's bound. Physical Review A (atomic, molecular, and optical physics and quantum information) [English], 66 (4), 042114-1-042114-5. https://doi.org/10.1103/PhysRevA.66.042114. |
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