Maslek, J.
, Bracamontes Palma, C.
and Porto, J.
(2024),
Dynamical Formation of Prethermal BEC in Floquet Engineered Lattice, Physical Review A, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=956525
(Accessed December 13, 2024)
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Dynamical Formation of Prethermal BEC in Floquet Engineered Lattice
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Author(s)
James Maslek, ,
Abstract
We experimentally realise an effective Hamiltonian with a continuously adjustable staggered gauge field for weakly interacting bosons in an optical lattice. Periodic driving realises a staggered $\Phi$-flux model, where $\Phi$ can be continuously tuned around $\pi$ or $2 \pi$. We study heating and pre-thermal relaxation in the modulated lattices following sudden changes in the effective fields. By quenching the system between different Floquet-induced fields with different ground states, we observe Bose re-condensation of quench-excited atoms on time scales faster than heating due to the drive. These results are necessary steps towards the generation of correlated states by Hamiltonian modulation, but drive-induced heating (observed here in the weakly interacting limit) is poorly understood in the highly correlated limit and needs to be further studied to determine if such correlated states are realizable.Citation
Physical Review A
Pub Type
Journals
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Keywords
Cold Atoms, Quantum Simulation, Floquet
Citation
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Created June 3, 2024, Updated November 19, 2024