3D Schr\"odinger equation: scattering operator, scattering amplitude and ergodic property
Abstract
Stationary scattering problem (when the distance r tends to infinity) and dynamical scattering problem (when the time t tends to infinity) are considered for the 3D Schr\"odinger equation. A simple interconnection between the scattering amplitude (stationary case) and scattering operator (dynamical case) is given in the paper. This result is a quantum mechanical analog of the ergodic formulas in the classical mechanics.
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