1. SPIN-J GEOMETRIC PHASE DRIVEN BY A CLASSICAL FLUCTUATING FIELD.
- Author
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LIU, JIBING, LÜ, XINYOU, LIU, NA, ZHENG, ANSHOU, and ZHAN, ZHIMING
- Subjects
MAGNETIC fields ,ELECTRIC fields ,DYNAMICS ,GEOMETRY ,FIELD theory (Physics) - Abstract
The authors investigate the geometric phase of a spin-J system interacting with a classical magnetic field which contains a fluctuating component. Assuming an Ornstein–Uhlenbeck process for the fluctuations, we find that the distribution due to the fluctuating component for the geometric phase is a Gaussian. We calculate in detail the variance of geometric and dynamic phases. The results clearly show that the geometric phase can reduce the fluctuations, but the dynamic phase can not. [ABSTRACT FROM AUTHOR]
- Published
- 2008
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