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cond-mat.stat-mech2003
Semiclassical quantization of bound and quasi-stationary states beyond the adiabatic approximation
V. A. Benderskii, E. V. Vetoshkin, E. I. Kats
We examine one important (and overlooked in all previous investigations) aspect of well - known crossing diabatic potentials or Landau - Zener (LZ) problem. We derive the semiclass…
cond-mat.stat-mech2003
Instanton versus traditional WKB approach to Landau - Zener problem
V. A. Benderskii, E. V. Vetoshkin, E. I. Kats
Different theoretical approaches to the famous two state Landau - Zener problem are briefly discussed. Apart from traditional methods of the adiabatic perturbation theory, Born - O…