Numerical Analyses of the Landau-Zener Transition with a Finite Sweeping Time

Fu-Quan Dou, Sheng-Chang Li, Hui Cao

Dmitry A. Garanin, R. Schilling

Wang Jin-Bao, Tong Guo-ping, Li Sheng

We study the effect of Landau–Zener (LZ) tunneling caused by the varying sweeping rate of the external field, and solve the problem about the LZ tunneling rate among many levels. The LZ tunneling rate is essentially changed by the unsteady variation of the time-dependent sweeping field and is different from the steadily varying sweeping field, which makes the particles in lower states transit periodically to upper states within a finite time.

Wang Jin-Bao, Tong Guo-ping

We study the effect of Landau-Zener (LZ) tunneling caused by the varying sweeping rate of external field, formulating and approximately solving the problem with many levels of the LZ tunneling rate. Comparing with the steadily vary about sweeping field, the LZ tunneling rate will be essentially changed because of the unsteady variation of the sweeping field in time. Thus could help us to make the particles with in lower states transit periodically to upper states within the finite time.

Guozhu Sun, Xueda Wen, Jian Chen +3 more

David Waxman