Abstract
The Out-Of-Equilibrium Dynamics Of Finite Ultracold Bosonic Ensembles In Periodically Driven One-Dimensional Optical Lattices Is Investigated. Our Study Reveals That The Driving Enforces The Bosons In Different Wells To Oscillate In-Phase And To Exhibit A Dipole-Like Mode. A Wide Range From Weak-To-Strong Driving Frequencies Is Covered And A Resonance-Like Behavior Of The Intra-Well Dynamics Is Discussed. In The Proximity Of The Resonance A Rich Intraband Excitation Spectrum Is Observed. The Single Particle Excitation Mechanisms Are Studied In The Framework Of Floquet Theory Elucidating The Role Of The Driving Frequency. The Impact Of The Interatomic Repulsive Interactions Is Examined In Detail Yielding A Strong Influence On The Tunneling Period And The Excitation Probabilities. Finally, The Dependence Of The Resonance Upon A Variation Of The Tunable Parameters Of The Optical Lattice Is Examined. Our Analysis Is Based On The Ab Initio Multi-Configuration Time-Dependent Hartree Method For Bosons.
Recommended Citation
S. I. Mistakidis et al., "Resonant Quantum Dynamics Of Few Ultracold Bosons In Periodically Driven Finite Lattices," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 48, no. 24, article no. 244004, IOP Publishing, Nov 2015.
The definitive version is available at https://doi.org/10.1088/0953-4075/48/24/244004
Department(s)
Physics
Keywords and Phrases
nonequilibrium quantum dynamics; periodic driving; ultracold atoms
International Standard Serial Number (ISSN)
1361-6455; 0953-4075
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 IOP Publishing, All rights reserved.
Publication Date
03 Nov 2015
