Observable Zitterbewegung in curved spacetimes

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http://hdl.handle.net/10138/184730

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Kobakhidze , A , Manning , A & Tureanu , A 2016 , ' Observable Zitterbewegung in curved spacetimes ' Physics Letters B , vol. 757 , pp. 84-91 . DOI: 10.1016/j.physletb.2016.03.049

Title: Observable Zitterbewegung in curved spacetimes
Author: Kobakhidze, Archil; Manning, Adrian; Tureanu, Anca
Contributor: University of Helsinki, Particle Physics and Astrophysics
Date: 2016-06-10
Language: eng
Number of pages: 8
Belongs to series: Physics Letters B
ISSN: 0370-2693
URI: http://hdl.handle.net/10138/184730
Abstract: Zitterbewegung, as it was originally described by Schrodinger, 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. (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).
Subject: ANALOG GRAVITY
114 Physical sciences
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