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arXiv · 1105.0094

Entangled spinning particles in charged and rotating black holes

Felipe Robledo-Padilla·Hugo Garcia-Compean
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Abstract

Spin precession for an EPR pair of spin-1/2 particles in equatorial orbits around a Kerr-Newman black hole is studied. Hovering observers are introduced to ensure fixed reference frames in order to perform the Wigner rotation. These observers also guarantee a reliable direction to compare spin states in rotating black holes. The velocity of the particle due frame-dragging is explicitly incorporated by addition of velocities with respect the hovering observers and the corresponding spin precession angle is computed. The spin-singlet state is observed to be mixed with the spin-triplet by dynamical and gravity effects, thus it is found that a perfect anti-correlation of entangled states for these observers is deteriorated. Finally, an analysis concerning the different limit cases of parameters of spin precession including the frame-dragging effects is carried out.

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Felipe Robledo-Padilla, Hugo Garcia-Compean. 2012-04-19. Entangled spinning particles in charged and rotating black holes. https://doi.org/10.4006/0836-1398-26.1.86

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