Y u. V . Bludov, V . V . Konotop
We report the possibility of steering gap solitons in Bose-Einstein condensates loaded in optical lattices by means of time-dependent nonlinearities, which allow one to control in a nondestructive manner both Bloch oscillations and Landau-Zener tunneling (i.e., Rabi oscillations) across band gaps. As an example we show how to move a matter-wave soliton in real and in reciprocal space from a lower to higher bands, avoiding dynamical instabilities. This opens the possibility of experimental access to gap solitons of higher bands and forcing of soliton motion through a lattice via the Feshbach resonance technique.
@article{7a6297a2-142e-4335-be89-78d5fd91766f,
title={Matter waves and quantum tunneling engin},
author={Y u. V . Bludov and V . V . Konotop},
year={2026},
language={en}
}TY - JOUR TI - Matter waves and quantum tunneling engin AU - Y u. V . Bludov AU - V . V . Konotop PY - 2026 LA - en ER -
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