Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-07-28
Physics
Condensed Matter
Other Condensed Matter
6 pages, revtex, 6 figures, to appear in Physics Letters A; minor modifications from last version
Scientific paper
10.1016/j.physleta.2005.11.074
We analyze the existence and stability of bright, dark, and gap matter-wave solitons in optical superlattices. Then, using these properties, we show that (time-dependent) ``dynamical superlattices'' can be used to controllably place, guide, and manipulate these solitons. In particular, we use numerical experiments to displace solitons by turning on a secondary lattice structure, transfer solitons from one location to another by shifting one superlattice substructure relative to the other, and implement solitonic ``path-following'', in which a matter wave follows the time-dependent lattice substructure into oscillatory motion.
Carretero-González Ricardo
Frantzeskakis Dimitri J.
Kevrekidis Panagiotis G.
Porter Mason A.
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