Increasing the frequency of a free electron laser by means of a linearly polarized magnetic field |
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| Authors: | W Becker |
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| Institution: | (1) Institut für Theoretische Physik B, Technische Hochschule, Erweiterungsgelände Seffent-Melaten, D-5100 Aachen, Federal Republic of Germany;(2) Present address: Technical and Agricultural Academy (ATR), Bydgoszcz, Poland |
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| Abstract: | An approximation method is proposed to obtain time dependent solutions of discrete master equations and Fokker-Planck equations. We restrict ourselves to one-dimensional one-step master equations and to one-dimensional F-P equations. Approximate evolution equations for certain statistical averages, e.g. for statistical moments, are formulated and applied for two examples of nonequilibrium phase transitions. |
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