Wavepacket diffraction in the Kronig-Penney model

Details Wavepacket diffraction in the Kronig-Penney model Wavepacket diffraction in the Kronig-Penney model

2001-07-25

arxiv.org/abs/cond-mat/0107522v1

Physics

Condensed Matter

Latex format,5 eps figures

Scientific paper

10.1088/0305-4470/35/4/316

The phenomenon of wavepacket diffraction in space and time is investigated numerically and analytically, for a one-dimensional array of equally spaced finite-depth wells. Theoretical predictions for the lattice at long times and at low scattering energies, coincide exactly with the results for a single well. At intermediate and short times compared to the classical passage time, the pattern shows both a broad diffractive pattern and an interference pattern inside each diffractive peak. The diffractive structure persists for this case to infinite time.

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