We have investigated the effect of noise on the energy gap of the quantum resonant tunneling. By the use of the Landau-Zener-Stückelberg formula, we estimate the tunneling gap of the two level system with S = 1/2 and also that of the lowest two levels in the realistic model with S = 10. As observed in the corresponding experiments, the estimated gap has no velocity dependence in fast sweeping field in both systems. We show that a correction for the estimated energy gap is necessary for the two level system with S = 1/2, while the effect of noise is negligible for the system with S = 10. We discuss the difference between both systems and also interpretation of the experimental data.
|ジャーナル||Journal of Physics and Chemistry of Solids|
|出版ステータス||Published - 2002 6|
|イベント||Proceedings of the 8th ISSP International Symposium - Tokyo, Japan|
継続期間: 2001 11 2 → 2001 11 5
ASJC Scopus subject areas
- 化学 (全般)