Motion of a wave packet in crossed fields

Lyudvig Dmitrievich Faddeev, O. Yakubovskiĭ

Thai Quang

И. М. Уманский, L. D. Ievleva

Hidetoshi Takagi, Mitsuru Ishida Mitsuru Ishida, Nobuhiko Sawaki

The motion of a two-dimensional Gaussian wave packet was analyzed under crossed electric and magnetic fields by solving the time-dependent Schrödinger equation numerically. It was found that the perpendicular magnetic field prevents the expansion of the wave packet and the in-plane electric field transfers the wave packet. The possibility of trapping and transfer of the wave packet is discussed by introducing a phenomenological decay term into the partial waves.

Ronald A. Lovett

Fang Liu

In the two cases that the deformed nuclear system is regular and chaotic, the spatial temporal evolution of the coherent states of a two dimensional harmonic oscillator system as an initial state was analyzed with the Fourier transformation, especially by comparing the Fourier transformation of the width of the wave packet in the whole time stage with that the wave packet approaching to the saturation in the chaotic system. It was found that since a large number of avoided level crossings destroy the regular structure of the state space of the system, the components in the wave packet are no longer coherent and the motion of the wave packet becomes chaotic. Afterwards, the contribution coming from the different components tends to uniform, the influence of the avoided level crossings on the motion of the wave packet is not obvious also