Generating soliton trains through Floquet engineering
- URL: http://arxiv.org/abs/2212.11904v2
- Date: Wed, 12 Apr 2023 09:10:21 GMT
- Title: Generating soliton trains through Floquet engineering
- Authors: Pablo Blanco-Mas and Charles E. Creffield
- Abstract summary: Floquet engineering allows the ground-state of the system to be converted into a train of bright solitons by inverting the sign of the hopping energy.
We conclude that the Floquet approach is a useful and stable method of preparing solitons in cold atom systems.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We study a gas of interacting ultracold bosons held in a parabolic trap in
the presence of an optical lattice potential. Treating the system as a
discretised Gross-Pitaevskii model, we show how Floquet engineering, by rapidly
``shaking'' the lattice, allows the ground-state of the system to be converted
into a train of bright solitons by inverting the sign of the hopping energy. We
study how the number of solitons produced depends on the system's nonlinearity
and the curvature of the trap, show how the technique can be applied both in
the high and low driving-frequency regimes, and demonstrate the phenomenon's
stability against noise. We conclude that the Floquet approach is a useful and
stable method of preparing solitons in cold atom systems.
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