Relativistic entanglement of Bell states with general momentum

Details Relativistic entanglement of Bell states with general momentum Relativistic entanglement of Bell states with general momentum

2003-04-17

arxiv.org/abs/quant-ph/0304116v1

Progress of Theoretical Physics, Vol. 112, pp. 219-240 (2004)

Physics

Quantum Physics

Scientific paper

10.1143/PTP.112.219

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.

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