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Landau-Zener problem for energies close to potential crossing points | | V.A.Benderskii
; E.V.Vetoshkin
; E. I. Kats
; | | Date: |
16 Aug 2004 | | Subject: | Statistical Mechanics; Materials Science | cond-mat.stat-mech cond-mat.mtrl-sci | | Affiliation: | Institute of Problems of Chemical Physics, Moscow Region, Chernogolovka, Russia), E. I. Kats (Laue-Langevin Institute, Grenoble, France, and L. D. Landau Institute for Theoretical Physics, RAS, Moscow, Russia | | Abstract: | We examine one overlooked in previous investigations aspect of well - known Landau - Zener (LZ) problem, namely, the behavior in the intermediate, i.e. close to a crossing point, energy region, when all four LZ states are coupled and should be taken into account. We calculate the 4 x 4 connection matrix in this intermediate energy region, possessing the same block structure as the known connection matrices for the tunneling and in the over-barrier regions of the energy, and continously matching those in the corresponding energy regions. | | Source: | arXiv, cond-mat/0408346 | | Services: | Forum | Review | PDF | Favorites | |
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