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Quantum Foundations

Spin quantum correlations of relativistic particles

arXiv

Authors: Pablo L. Saldanha, Vlatko Vedral

Year

2011

Paper ID

29362

Status

Preprint

Abstract Read

~2 min

Abstract Words

110

Citations

N/A

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 post-selection of the particles momenta, representing a major difference in relation to non-relativistic 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.

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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...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1112.1272 [2] arXiv https://arxiv.org/abs/1112.1272 [3] Publisher https://arxiv.org/abs/1112.1272

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