The exotic Galilei group and the "Peierls substitution"

Details The exotic Galilei group and the "Peierls substitution" The exotic Galilei group and the "Peierls substitution"

2000-02-28

arxiv.org/abs/hep-th/0002233v3

Phys.Lett.B479:284-290,2000

Physics

High Energy Physics

High Energy Physics - Theory

Revised version, to appear in Phys. Lett. B. Souriau's scheme and its relation of with the Faddeev-Jackiw hamiltonian reductio

Scientific paper

10.1016/S0370-2693(00)00341-5

Taking advantage of the two-parameter central extension of the planar Galilei group, we construct a non relativistic particle model in the plane. Owing to the extra structure, the coordinates do not commute. Our model can be viewed as the non-relativistic counterpart of the relativistic anyon considered before by Jackiw and Nair. For a particle moving in a magnetic field perpendicular to the plane, the two parameters combine with the magnetic field to provide an effective mass. For vanishing effective mass the phase space admits a two-dimensional reduction, which represents the condensation to collective ``Hall'' motions and justifies the rule called ``Peierls substitution''. Quantization yields the wave functions proposed by Laughlin to describe the Fractional Quantum Hall Effect.

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