Quantum nonlocality of massive qubits in a moving frame
Quantum Physics
2015-06-15 v2
Abstract
We perform numerical tests on quantum nonlocality of two-level quantum systems (qubits) observed by a uniformly moving observer. Under a suitable momentum setting, the quantum nonlocality of two-qubit nonmaximally entangled states could be weakened drastically by the Lorentz transformation allowing for the existence of local-hidden-variable models, whereas three-qubit genuinely entangled states are robust. In particular, the generalized GHZ state remains nonlocal under arbitrary Wigner rotation and the generalized W state could admit local-hidden-variable models within a rather narrow range of parameters.
Cite
@article{arxiv.1304.7069,
title = {Quantum nonlocality of massive qubits in a moving frame},
author = {Hong-Yi Su and Yu-Chun Wu and Jing-Ling Chen and Chunfeng Wu and L. C. Kwek},
journal= {arXiv preprint arXiv:1304.7069},
year = {2015}
}
Comments
6 pages, 4 figures; Minor changes, accepted by PRA