Asymptotic Behavior of Bohmian Trajectories in Scattering Situations

Details Asymptotic Behavior of Bohmian Trajectories in Scattering Situations Asymptotic Behavior of Bohmian Trajectories in Scattering Situations

2005-05-27

arxiv.org/abs/math-ph/0505074v3

J. Phys. A: Math. Gen. 38 (2005) 8421-8443

Physics

Mathematical Physics

24 pages, 2 figures; added references in section 1

Scientific paper

10.1088/0305-4470/38/39/009

We study the asymptotic behavior of Bohmian trajectories in a scattering situation with short range potential and for wave functions with a scattering and a bound part. It is shown that the set of possible trajectories splits into trajectories whose long time behavior is governed by the scattering part of the wave function (scattering trajectories) and trajectories whose long time behavior is governed by the bound part of the wave function (bound trajectories). Furthermore the scattering trajectories behave like trajectories in classical mechanics in the long time limit. As an intermediate step we show that the asymptotic velocity v_{infty}:=lim_{t to infty}Q/t exists almost surely and is randomly distributed with the density |hat{Psi}^{out}|^2, where Psi^{out} is the outgoing asymptote of the scattering part of the wave function.

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