Floquet engineering of correlated tunneling in the Bose-Hubbard model with ultracold atoms
| Autor: | Katharina Lauber, Andrew J. Daley, Florian Meinert, Manfred J. Mark, Hanns-Christoph Nägerl |
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| Rok vydání: | 2016 |
| Předmět: |
Floquet theory
Physics Condensed Matter::Quantum Gases Condensed matter physics General Physics and Astronomy FOS: Physical sciences Interaction energy Bose–Hubbard model Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 01 natural sciences 010305 fluids & plasmas Coherent control Ultracold atom Quantum Gases (cond-mat.quant-gas) Lattice (order) 0103 physical sciences Physics::Atomic Physics Atomic physics 010306 general physics Condensed Matter - Quantum Gases Quantum Quantum tunnelling QC |
| ISSN: | 1079-7114 |
| DOI: | 10.48550/arxiv.1602.02657 |
| Popis: | We report on the experimental implementation of tunable occupation-dependent tunneling in a Bose-Hubbard system of ultracold atoms via time-periodic modulation of the on-site interaction energy. The tunneling rate is inferred from a time-resolved measurement of the lattice site occupation after a quantum quench. We demonstrate coherent control of the tunneling dynamics in the correlated many-body system, including full suppression of tunneling as predicted within the framework of Floquet theory. We find that the tunneling rate explicitly depends on the atom number difference in neighboring lattice sites. Our results may open up ways to realize artificial gauge fields that feature density dependence with ultracold atoms. Comment: 8 pages, 9 figures |
| Databáze: | OpenAIRE |
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