Magnetism of Two Coupled Harmonic Oscillators

Details Magnetism of Two Coupled Harmonic Oscillators Magnetism of Two Coupled Harmonic Oscillators

2009-11-15

arxiv.org/abs/0911.2837v1

J.Stat.Mech.1001:P01012,2010

Physics

Condensed Matter

Statistical Mechanics

25 pages

Scientific paper

10.1088/1742-5468/2010/01/P01012

The thermodynamical properties of a system of two coupled harmonic oscillators in the presence of an uniform magnetic field B are investigated. Using an unitary transformation, we show that the system can be diagonalized in simple way and then obtain the energy spectrum solutions. These will be used to determine the thermodynamical potential in terms of different physical parameters like the coupling parameter \alpha. This allows us to give a generalization of already significant published work and obtain different results, those could be used to discuss the magnetism of the system. Different limiting cases, in terms of \alpha and B, have been discussed. In fact, quantum corrections to the Landau diamagnetism and orbital paramagnetism are found.

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