KIP publications

year 2004
author(s) B. Eiermann, Th. Anker, M. Albiez, M. Taglieber, P. Treutlein, K-P. Marzlin and M.K. Oberthaler
title Bright Bose-Einstein Gap Solitons of Atoms with Repulsive Interaction
KIP-Nummer HD-KIP 04-28
KIP-Gruppe(n) F17,F20
document type Paper
Keywords (shown) Bright Bose-Einstein Gap Solitons Repulsive Interaction
source Physical Review Letters 92 (2004) 230401
doi 10.1103/PhysRevLett.92.230401
Abstract (en)

We report on the first experimental observation of bright matter wave solitons for 87Rb atoms with repulsive atom-atom interaction. This counterintuitive situation arises inside a weak periodic potential, where anomalous dispersion can be realized at the Brillouin zone boundary. If the coherent atomic wave packet is prepared at the corresponding band edge, a bright soliton is formed inside the gap. The strength of our system is the precise control of preparation and real time manipulation, allowing the systematic investigation of gap solitons

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