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Nature Physics

Self-accelerating Dirac particles and prolonging the lifetime of relativistic fermions

Ido E. Kaminer, Jonathan Nemirovsky, Mikael C. Rechtsman, Rivka Bekenstein, Mordechai Segev

Published Jan 5, 2015• 69 citations
Publisher
DOI
10.1038/nphys3196

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We study how the entanglement of an entangled pair of particles is affected when one or both of the pair is uniformly accelerated, while the detector remains in an inertial frame. We find that the entanglement is unchanged if all degrees of freedom are considered. However, particle pairs are produced when a relativistic particle is accelerated, and more bipartite systems emerge, the entanglements of some of which may change as the acceleration. In particular, the entanglement of a pair of accelerating fermions is transferred preferentially to the produced antiparticles when the acceleration is large, and the entanglement transfer is complete when the acceleration approaches infinity. However, no such entanglement transfer to the antiparticles is observed for scalar particles.