Wave packets falling under a mirror

G. Kälbermann*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

We depict and analyse a new effect for wave packets falling freely under a barrier or well. The effect appears for wave packets whose initial spread is smaller than the combination lg3/|z0|, between the gravitational length scale lg = (ℏ2c 2/2m2g)1/3 and the initial location of the packet z0. It consists of a diffractive structure that is generated by the falling and spreading wave packet and the waves reflected from the obstacle. The effect is enhanced when the Gross-Pitaevskii interaction for positive scattering length is included. The theoretical analysis reproduces the essential features of the effect. Experiments emanating from the findings are proposed.

Original languageEnglish
Pages (from-to)9829-9841
Number of pages13
JournalJournal of Physics A: Mathematical and General
Volume35
Issue number46
DOIs
StatePublished - 22 Nov 2002

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