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Quantum Entanglement of Moving Bodies

Robert M. Gingrich and Christoph Adami
Phys. Rev. Lett. 89, 270402 – Published 16 December 2002
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Abstract

We study the properties of quantum entanglement in moving frames, and show that, because spin and momentum become mixed when viewed by a moving observer, the entanglement between the spins of a pair of particles is not invariant. We give an example of a pair, fully spin entangled in the rest frame, which has its spin entanglement reduced in all other frames. Similarly, we show that there are pairs whose spin entanglement increases from zero to maximal entanglement when boosted. While spin and momentum entanglement separately are not Lorentz invariant, the joint entanglement of the wave function is.

  • Figure
  • Figure
  • Received 21 June 2002

DOI:https://doi.org/10.1103/PhysRevLett.89.270402

©2002 American Physical Society

Authors & Affiliations

Robert M. Gingrich and Christoph Adami

  • Quantum Computing Technologies Group, Jet Propulsion Laboratory 126-347, California Institute of Technology, Pasadena, California 91109-8099

See Also

Spooky at Any Speed

JR Minkel
Phys. Rev. Focus 10, 29 (2002)

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Issue

Vol. 89, Iss. 27 — 30 December 2002

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