Fast noise in the Landau-Zener theory
arXiv:cond-mat/0212016 · doi:10.1103/PhysRevB.67.144303
Abstract
We study the influence of a fast noise on Landau-Zener transitions. We demonstrate that a fast colored noise much weaker than the conventional white noise can produce transitions itself or can change substantially the Landau-Zener transition probabilities. In the limit of fast colored or strong white noise we derive asymptotically exact formulae for transition probabilities and study the time evolution of a spin coupled to the noise and a sweeping magnetic field.
arXiv comment28 pages, 5 figures
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