English

Relativistic entanglement of Bell states with general momentum

Quantum Physics 2009-11-10 v1

Abstract

In this paper, the Lorentz transformation of the entangled Bell states with momentum, not necessarily orthogonal to the boost direction, and spin, is studied. We extended quantum correlations and Bell's inequality to the relativistic regime by considering normalized relativistic observables. It is shown that quantum information, along the perpendicular direction to the boost, is eventually lost and Bell's inequality is not always violated for entangled states in special relativity. This could impose restrictions to certain quantum information processing such as quantum cryptography using massive particles.

Keywords

Cite

@article{arxiv.quant-ph/0304116,
  title  = {Relativistic entanglement of Bell states with general momentum},
  author = {Young Hoon Moon and Doyeol Ahn and Sung Woo Hwang},
  journal= {arXiv preprint arXiv:quant-ph/0304116},
  year   = {2009}
}