Artículo
No-hidden-variables proof for two spin-1/2 particles preselected and postselected in unentangled states
Autor/es | Cabello Quintero, Adán
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Departamento | Universidad de Sevilla. Departamento de Física Aplicada II |
Fecha de publicación | 1997-06-01 |
Fecha de depósito | 2024-01-10 |
Publicado en |
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Resumen | It is a well-known fact that all the statistical predictions of quantum mechanics on the state of any physical system represented by a two-dimensional Hilbert space can always be duplicated by a noncontextual hidden-variables ... It is a well-known fact that all the statistical predictions of quantum mechanics on the state of any physical system represented by a two-dimensional Hilbert space can always be duplicated by a noncontextual hidden-variables model. In this paper, I show that, in some cases, when we consider an additional independent (unentangled) two-dimensional system, the quantum description of the resulting composite system cannot be reproduced using noncontextual hidden variables. In particular, a no-hidden-variables proof is presented for two individual spin- particles preselected in an uncorrelated state |A〉⊗|B〉 and postselected in another uncorrelated state |a〉⊗|B〉, |B〉 being the same state for the second particle in both preselection and postselection. |
Cita | Cabello Quintero, A. (1997). No-hidden-variables proof for two spin-1/2 particles preselected and postselected in unentangled states. Physical Review A (atomic, molecular, and optical physics and quantum information), 55, 4109-4111. https://doi.org/10.1103/PhysRevA.55.4109. |
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