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Zitterbewegung of a Dirac electron is an oscillation between positive and negative energy states, and is thus distinct from the analogous phenomena exhibited by spin half charged particles in electric and magnetic fields. Quantum field…

量子物理 · 物理学 2020-06-26 Basil S. Davis

An analogy between the band structure of narrow gap semiconductors and the Dirac equation for relativistic electrons in vacuum is used to demonstrate that semiconductor electrons experience a Zitterbewegung (trembling motion). Its frequency…

材料科学 · 物理学 2009-11-10 Wlodek Zawadzki

Electron channeling in silicon crystals has brought forward the possibility of having detected the particle's "de Broglie internal clock", as giving rise to the observed resonance peak at the center of the expected transmission probability…

量子物理 · 物理学 2014-09-04 M. Bauer

Electric current and spacial displacement due to trembling motion [Zitterbewegung (ZB)] of electrons in graphene in the presence of an external magnetic field are described. Contributions of both inequivalent $K$ points in the Brillouin…

介观与纳米尺度物理 · 物理学 2010-03-30 Tomasz M. Rusin , Wlodek Zawadzki

Electrons in monolayer graphene in the presence of an electromagnetic (or electric) wave are considered theoretically. It is shown that the electron motion is a nonlinear combination of Zitterbewegung (ZB, trembling motion) resulting from…

介观与纳米尺度物理 · 物理学 2013-12-11 Tomasz M Rusin , Wlodek Zawadzki

It is shown that the electron Zitterbewegung, that is, the high-frequency microscopic oscillatory motion of electron about its centre of mass, originates a spatial distribution of charge. This allows the point-like electron behave like a…

量子物理 · 物理学 2007-05-23 P. Brovetto , V. Maxia , M. Salis

The study of this paper demonstrates that electron has Dirac delta like internal momentum (u,p_{{\theta}}), going round in a circle of radius equal to half the reduced Compton wavelength of electron with tangential velocity c. The circular…

综合物理 · 物理学 2016-02-25 Malik Mohammad Asif , Salman Khan

In the Dirac theory for the motion of free relativistic electrons, highly oscillatory components appear in the time evolution of physical observables such as position, velocity, and spin angular momentum. This effect is known as…

介观与纳米尺度物理 · 物理学 2009-11-11 R. Winkler , U. Zülicke , Jens Bolte

Zitterbewegung is a striking consequence of relativistic quantum mechanics which predicts that free Dirac electrons exhibit a rapid trembling motion even in the absence of external forces. The trembling motion of an electron results from…

介观与纳米尺度物理 · 物理学 2016-12-20 I. Stepanov , M. Ersfeld , A. V. Poshakinskiy , M. Lepsa , E. L. Ivchenko , S. A. Tarasenko , B. Beschoten

One-electron 3+1 and 2+1 Dirac equations are used to calculate the motion of a relativistic electron in a vacuum in the presence of an external magnetic field. First, calculations are carried on an operator level and exact analytical…

量子物理 · 物理学 2011-01-17 Tomasz M. Rusin , Wlodek Zawadzki

Traditionally, the zitterbewegung (ZB) of the Dirac electron has just been studied at the level of quantum mechanics. Seeing that the fact that an old interest in ZB has recently been rekindled by the investigations on spintronic, graphene,…

量子物理 · 物理学 2008-11-14 Zhi-Yong Wang , Cai-Dong Xiong

Dirac's Relativistic Wave Equation implies a measured electron velocity of $\pm c$ in any direction, in contradiction to Special Relativity and observation. It is shown in this article that this anomalous electron velocity reveals an…

量子物理 · 物理学 2020-06-30 Basil S. Davis

Zitterbewegung (ZB, the trembling motion) of free relativistic electrons in a vacuum in the presence of an external magnetic field is calculated. It is shown that the motion of an electron wave packet has intraband frequency components,…

量子物理 · 物理学 2011-01-04 Tomasz. M. Rusin , Wlodek Zawadzki

We propose an experiment allowing an observation of Zitterbewegung (ZB, trembling motion) of electrons in graphene in the presence of a magnetic field. In contrast to the existing theoretical work we make no assumptions concerning shape of…

介观与纳米尺度物理 · 物理学 2011-12-30 Tomasz M. Rusin , Wlodek Zawadzki

The phenomenon of Zitterbewegung (ZB, trembling motion) of electrons is described in zigzag carbon nanotubes (CNT) excited by laser pulses. The tight binding approach is used for the band structure of CNT and the effect of light is…

介观与纳米尺度物理 · 物理学 2015-02-25 Tomasz M. Rusin , Wlodek Zawadzki

We demonstrate both classically and quantum mechanically that the Zitterbewegung (ZB, the trembling motion) of electrons in crystalline solids is nothing else, but oscillations of velocity assuring the energy conservation when the electron…

介观与纳米尺度物理 · 物理学 2010-08-11 Wlodek Zawadzki , Tomasz M. Rusin

The highly successful Dirac equation can predict peculiar effects such as Klein tunneling and the "Zitterbewegung" (German for "trembling motion") of electrons. From the time it was first identified by Erwin Schrodinger, Zitterbewegung (ZB)…

介观与纳米尺度物理 · 物理学 2016-11-22 Yu Iwasaki , Yoshiaki Hashimoto , Taketomo Nakamura , Shingo Katsumoto

The Zitterbewegung (ZB) effect is investigated in graphene with spacially modulated potential near the original Dirac point (ODP) and extra Dirac points (EDPs). Our calculations show that to get the large ZB oscillations, the wave packet…

介观与纳米尺度物理 · 物理学 2020-08-26 Abdellatif Kamal , Ahmed Jellal

Magneto-oscillations of the electric dipole moment are predicted and analyzed for a single-electron nanoscale ring pierced by a magnetic flux (an Aharonov-Bohm ring) and subjected to an electric field in the ring's plane. These oscillations…

介观与纳米尺度物理 · 物理学 2012-09-11 A. M. Alexeev , M. E. Portnoi

Spacetime Algebra (STA) provides unified, matrix-free spinor methods for rotational dynamics in classical theory as well as quantum mechanics. That makes it an ideal tool for studying particle models of zitterbewegung and using them to…

量子物理 · 物理学 2008-02-21 David Hestenes
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