Observable Zitterbewegung in curved spacetimes

DOI10.1016/J.PHYSLETB.2016.03.049zbMATH Open1360.81249arXiv1508.06322OpenAlexW2306171217MaRDI QIDQ526178

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Publication date: 10 May 2017

Published in: (Search for Journal in Brave)

Abstract: Zitterbewegung, as it was originally described by Schr"odinger, is an unphysical, non-observable effect. We verify whether the effect can be observed in non-inertial reference frames/curved spacetimes, where the ambiguity in defining particle states results in a mixing of positive and negative frequency modes. We explicitly demonstrate that such a mixing is in fact necessary to obtain the correct classical value for a particle's velocity in a uniformly accelerated reference frame, whereas in cosmological spacetime a particle does indeed exhibit Zitterbewegung.

Full work available at URL: https://arxiv.org/abs/1508.06322

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