Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.85.062101
Title: Spin quantum correlations of relativistic particles
Authors: Saldanha, P.L.
Vedral, V. 
Issue Date: 1-Jun-2012
Citation: Saldanha, P.L., Vedral, V. (2012-06-01). Spin quantum correlations of relativistic particles. Physical Review A - Atomic, Molecular, and Optical Physics 85 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.85.062101
Abstract: We show that a pair of massive relativistic spin-1/2 particles prepared in a maximally entangled spin state in general is not capable of maximally violating the Clauser-Horne-Shimony-Holt (CHSH) version of Bell's inequalities without a postselection of the particles' momenta, representing a major difference in relation to nonrelativistic systems. This occurs because the quantization axis of the measurements performed on each particle depends on the particle velocity, such that it is not possible to define a reduced density matrix for the particles' spin. We also show that the amount of violation of the CHSH inequality depends on the reference frame and that in some frames the inequality may not be violated. © 2012 American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/97991
ISSN: 10502947
DOI: 10.1103/PhysRevA.85.062101
Appears in Collections:Staff Publications

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