Article
Violating bell's inequality beyond Cirel'son's bound
Author/s | Cabello Quintero, Adán |
Department | Universidad de Sevilla. Departamento de Física Aplicada II |
Publication Date | 2002-02-11 |
Deposit Date | 2024-01-15 |
Published in |
|
Abstract | Cirel’son inequality states that the absolute value of the combination of quantum correlations appearing in the Clauser-Horne-Shimony-Holt (CHSH) inequality is bound by 2 √ 2. It is shown that the correlations of two qubits ... Cirel’son inequality states that the absolute value of the combination of quantum correlations appearing in the Clauser-Horne-Shimony-Holt (CHSH) inequality is bound by 2 √ 2. It is shown that the correlations of two qubits belonging to a three-qubit system can violate the CHSH inequality beyond 2 √ 2. Such a violation is not in conflict with Cirel’son’s inequality because it is based on postselected systems. The maximum allowed violation of the CHSH inequality, 4, can be achieved using a Greenberger-Horne-Zeilinger state. |
Funding agencies | Junta de Andalucía Ministerio de Ciencia y Tecnología (MCYT). España |
Project ID. | FQM-239
BFM2000-0529 BFM2001-3943 |
Citation | Cabello Quintero, A. (2002). Violating bell's inequality beyond Cirel'son's bound. Physical Review Letters, 88 (6), 060403-1-060403-4. https://doi.org/10.1103/PhysRevLett.88.060403. |
Files | Size | Format | View | Description |
---|---|---|---|---|
Violating bell's inequality ... | 72.47Kb | [PDF] | View/ | |