AI Article Synopsis
- The research discusses Floquet band engineering in an optical lattice, focusing on how amplitude modulation affects long-range transport of a Bose condensate.
- It highlights the ability to control transport dynamics, allowing for the manipulation of the condensate across thousands of lattice sites through tunable Floquet-Bloch bands.
- The study shows that this transport can be used to directly image Floquet-Bloch band structures, potentially advancing cold atom quantum emulation of complex electronic behaviors.
Article Abstract
We report Floquet band engineering of long-range transport and direct imaging of Floquet-Bloch bands in an amplitude-modulated optical lattice. In one variety of Floquet-Bloch bands we observe tunable rapid long-range high-fidelity transport of a Bose condensate across thousands of lattice sites. Quenching into an opposite-parity Floquet-hybridized band allows Wannier-Stark localization to be controllably turned on and off using modulation. A central result of this work is the use of transport dynamics to demonstrate direct imaging of a Floquet-Bloch band structure. These results demonstrate that transport in dynamical Floquet-Bloch bands can be mapped to transport in quasistatic effective bands, opening a path to cold atom quantum emulation of ultrafast multiband electronic dynamics.
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| http://dx.doi.org/10.1103/PhysRevLett.122.010402 | DOI Listing |
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