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Zitterbewegung (z niemieckiego, oznacza „ruch drżący” [1]) – efekt pojawiający się w analizie rozwiązań równania Diraca, polegający na szybkiej oscylacji położenia cząstki wokół klasycznej trajektorii. Jeżeli skonstruować paczkę falową spełniającą równanie Diraca i zawierającą zarówno fale o dodatniej, jak i ...
In physics, the zitterbewegung (German pronunciation: [ˈtsɪtɐ.bəˌveːɡʊŋ], from German zittern 'to tremble, jitter', and Bewegung 'motion') is the theoretical prediction of a rapid oscillatory motion of elementary particles that obey relativistic wave equations.
7 lis 2019 · Zitterbewegung is an artifact of mistaking the parameter $\bfx$ as a position observable. Relativistic QFT doesn't have a strict position observable. In relatistic QFT, particle-detection observables can't be both perfectly noise-free and perfectly sharply localized in a finite region of spacetime.
characterize Zitterbewegung-like oscillatory motion. We emphasize that this extended notion of Zitterbewegung is entirely based on quantum mechanical concepts. In an alternative, semiclassical approach one would identify a Zitterbewegung relative to a suitable classical dynamics as, e.g., in Ref.21. In some cases the conclusions will
The zitterbewegung is a local circulatory motion of the electron presumed to be the basis of the electron spin and magnetic moment. A reformulation of the Dirac theory shows that the zitterbewegung need not be attributed to interference between positive and negative energy states as originally proposed by Schroedinger.
6 kwi 2020 · We demonstrate that the beating phenomenon is characterized by the zitterbewegung frequency and that the amplitude of these oscillations decays as ${t}^{\ensuremath{-}3/2}$. We show that the beating effect also manifests itself in the free Klein-Gordon and Dirac equations within a quantum shutter setup, which involve the dynamics of cutoff ...
29 paź 2012 · In a stochastic electrodynamics (SED) model , Zitterbewegung arises from the electromagnetic interaction of a semi-classical particle with the vacuum zero-point field, and the van der Waals force generated by this oscillatory motion is identified with the Newtonian gravitational field.
