Fast noise in the Landau-Zener theory

Article

关键词: BOW-TIE MODEL;    NONADIABATIC TRANSITION;    MOLECULAR MAGNETS;    TIME;    SYSTEMS;    INTERFERENCE;    DYNAMICS;    DRIVEN;    ENVIRONMENT;    DISSIPATION;   

DOI  :  10.1103/PhysRevB.67.144303

来源: SCIE

【 摘 要 】

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 formulas for transition probabilities and study the time evolution of a spin coupled to the noise and a sweeping magnetic field.

【 授权许可】

Free