Περίληψη:
We study 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. (c) 2005 Elsevier B.V. All rights reserved.
Συγγραφείς:
Porter, MA
Kevrekidis, PG
Carretero-Gonzalez, R and
Frantzeskakis, DJ
