Fast noise in the Landau-Zener theory

Citation data:

Physical Review B, ISSN: 0163-1829, Vol: 67, Issue: 14

Publication Year:
2003
Captures 27
Readers 27
Mentions 1
References 1
Citations 40
Citation Indexes 40
Repository URL:
http://dx.doi.org/10.1103/PhysRevB.67.144303
DOI:
10.1103/physrevb.67.144303
Author(s):
V. L. Pokrovsky; N. A. Sinitsyn
Publisher(s):
American Physical Society (APS)
Tags:
Materials Science; Physics and Astronomy; BOW-TIE MODEL; NONADIABATIC TRANSITION; MOLECULAR MAGNETS; TIME; SYSTEMS; INTERFERENCE; DYNAMICS; DRIVEN; ENVIRONMENT; DISSIPATION; Physics
article description
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. © 2003 The American Physical Society.