期刊
PHYSICS LETTERS B
卷 479, 期 1-3, 页码 284-290出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0370-2693(00)00341-5
关键词
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Taking advantage of the two-parameter central extension of thr 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 Wall Effect. (C) 2000 Elsevier Science B.V. All rights reserved.
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