In- and outbound spreading of a free-particle s-wave

i. Bialynicki-Birula, M. A. Cirone, Jens Peder Dahl, M. Fedorov, W.P. Schleich

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We show that a free quantum particle in two dimensions with zero angular momentum (s wave) in the form of a ring-shaped wave packet feels an attraction towards the center of the ring, leading first to a contraction followed by an expansion. An experiment to demonstrate this effect is also outlined.
Original languageEnglish
JournalPhysical Review Letters
Issue number6
Pages (from-to)060404
Publication statusPublished - 2002

Bibliographical note

Copyright (2002) American Physical Society



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