1201.5590 (Jing-Ling Chen et al.)

Quantum contextuality emerging from relativity    [PDF]

Jing-Ling Chen, Hong-Yi Su, Chunfeng Wu, Dong-Ling Deng, Adan Cabello, L. C. Kwek, C. H. Oh

The quantum predictions for a single nonrelativistic spin-1/2 particle can be
reproduced by noncontextual hidden variables. Here we show that quantum
contextuality naturally emerges if relativistic effects are taken into account.
Specifically, we show that the contextuality of a free relativistic electron
and of a relativistic electron moving in a Coulomb potential (a relativistic
hydrogen atom) can be observed through the violation of noncontextual
inequalities. We discuss how to experimentally observe quantum contextuality on
a free relativistic electron.

View original: http://arxiv.org/abs/1201.5590