Bifurcation phenomenon in spin relaxation |
| |
Authors: | Kimura Gen Yuasa Kazuya Imafuku Kentaro |
| |
Institution: | Department of Physics, Waseda University, Tokyo 169-8555, Japan. gen@hep.phys.waseda.ac.jp |
| |
Abstract: | Spin relaxation in a strong-coupling regime (with respect to the spin system) is investigated in detail based on the spin-boson model in a stochastic limit. We find a bifurcation phenomenon in temperature dependence of relaxation constants, which is never observed in the weak-coupling regime. We also discuss inequalities among the relaxation constants in our model and show the well-known relation 2gamma(T)>or=gamma(L), for example, for a wider parameter region than before. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|