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quant-ph2026
A logarithmic phase singularity at the heart of Landau-Zener transitions
Eric P. Glasbrenner, David Fabian, Wolfgang P. Schleich
Three ingredients of the elementary Landau-Zener problem determine the familiar expression for the asymptotic value of the probability amplit…
quant-ph2026
Elementary asymptotic approach to the Landau-Zener problem
Eric P. Glasbrenner, Wolfgang P. Schleich
We present an asymptotic approach towards the standard Landau-Zener problem based on two linearly independent elementary waves of constant amplitude but time-dependent phase. The t…
quant-ph2026
Time-dependent adiabatic elimination in matter-wave optics
Samuel Böhringer, Alexander Bott, Eric P. Glasbrenner
We show how the dynamics of a specific subset of states can be separated from the dynamic of the total quantum state via a time-dependent projector-based formalism of adiabatic eli…