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quant-ph2002★ 3 cited
Space-adiabatic Decoupling to All Orders
Gianluca Panati, Herbert Spohn, Stefan Teufel
A systematic perturbation scheme is developed for approximate solutions to the time-dependent Schroedinger equation with a space-adiabatic Hamiltonian. For a particular isolated en…
quant-ph1999★ 54 cited
Semiclassical limit of the Dirac equation and spin precession
Herbert Spohn
We study the Dirac equation with slowly varying external potentials. Using matrix-valued Wigner functions we prove that the electron follows with high precision the classical orbit…