Revivals, classical periodicity, and zitterbewegung of electron currents in monolayer graphene

Details Revivals, classical periodicity, and zitterbewegung of electron currents in monolayer graphene Revivals, classical periodicity, and zitterbewegung of electron currents in monolayer graphene

2009-11-23

arxiv.org/abs/0911.4367v1

Physical Review B 80, 165416 (2009)

Physics

Quantum Physics

Scientific paper

Revivals of electric current in graphene in the presence of an external magnetic field are described. It is shown that when the electrons are prepared in the form of wave packets assuming a Gaussian population of only positive (or negative) energy Landau levels, the presence of the magnetic field induce revivals of the electron currents, besides the classical cyclotron motion. When the population comprises both positive and negative energy Landau levels, revivals of the electric current manifest simultaneously with zitterbewegung and the classical cyclotron motion. We relate the temporal scales of these three effects and discuss to what extent these results hold for real graphene samples.

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