Relativistic Effects on Quantum Bell States of Massive Spin 12 Particles
نویسنده
چکیده
We examine the behaviour of the maximally entangled Bell state of two spin 12 massive particles under relativistic transformations. On the basis of explicit calculations of the Wigner rotation and the use of transformation properties of Dirac spinors, we establish that the constituent particles of the Bell state undergo momentum dependent rotation of the spin orientations characterized by the Wigner angle φW = tan−1 sinh sinh τ cosh +cosh τ . However, since local unitarity is retained in the process, the corresponding entanglement fidelity is not lost. c © Electronic Journal of Theoretical Physics. All rights reserved.
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