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Published on: May 30, 2014
Non-Markovian stationary probability density for a harmonic oscillator in an electromagnetic field
J I Jiménez-Aquino1, M Romero-Bastida
1Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa 09340, Distrito Federal, Mexico. ines@xanum.uam.mx
Abstract:
We calculate the exact solution of the Fokker-Planck equation for the stationary-state probability density of a harmonic oscillator embedded in an electromagnetic field. The magnetic field is assumed to be a constant and the electric field an external stochastic force with the properties of a Gaussian and exponentially correlated noise (Ornstein-Uhlenbeck process). In this work, we first study the problem in the absence of the magnetic field, then we obtain the complete solution and corroborate that the latter reduces to the former when the magnetic field is suppressed.
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