Temperature-resonant cyclotron spectra in confined geometries

Details Temperature-resonant cyclotron spectra in confined geometries Temperature-resonant cyclotron spectra in confined geometries

2011-05-22

arxiv.org/abs/1105.4313v1

Phys. Rev. E 84, 011107 (2011)

Nonlinear Sciences

Chaotic Dynamics

Scientific paper

10.1103/PhysRevE.84.011107

We consider a two-dimensional gas of colliding charged particles confined to finite size containers of various geometries and subjected to a uniform orthogonal magnetic field. The gas spectral densities are characterized by a broad peak at the cyclotron frequency. Unlike for infinitely extended gases, where the amplitude of the cyclotron peak grows linearly with temperature, here confinement causes such a peak to go through a maximum for an optimal temperature. In view of the fluctuation-dissipation theorem, the reported resonance effect has a direct counterpart in the electric susceptibility of the confined magnetized gas.

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