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Variations on the planar Landau problem: canonical transformations, a purely linear potential and the half-plane

Jan Govaerts1,2,4, M Norbert Hounkonnou2 and Habatwa V Mweene3

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The ordinary Landau problem of a charged particle in a plane subjected to a perpendicular homogeneous and static magnetic field is reconsidered from different points of view. The role of phase space canonical transformations and their relation to a choice of gauge in the solution of the problem is addressed. The Landau problem is then extended to different contexts, in particular the singular situation of a purely linear potential term being added as an interaction, for which a complete purely algebraic solution is presented. This solution is then exploited to solve this same singular Landau problem in the half-plane, with as motivation the potential relevance of such a geometry for quantum Hall measurements in the presence of an electric field or a gravitational quantum well.


PACS

04.60.Ds Canonical quantization

03.65.Fd Algebraic methods

02.40.Gh Noncommutative geometry

02.10.Ud Linear algebra

MSC

81R60 Noncommutative geometry

83C45 Quantization of the gravitational field

83C65 Methods of noncommutative geometry (See also 58B34)

81R15 Operator algebra methods (See also 46Lxx, 81T05)

Subjects

Mathematical physics

Gravitation and cosmology

Quantum information and quantum mechanics

Dates

Issue 48 (4 December 2009)

Received 14 September 2009

Published 17 November 2009



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