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arXiv · 1407.1150

Quantum Paddlewheel with Ultracold Atoms in Waveguides

Kunal. K. Das·Matthew R. Meehan·Andrew J. Pyle
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Abstract

We propose and study a quantum pump which emulates a traditional paddlewheel, that can be implemented with ultracold atoms in waveguides. We use wavepacket propagation to study its single-mode dynamics, which also determines its multimode current for mesoscopic setups. Energy flow with or without particle transport is possible. The spectrum reveals unusual features such as nonuniform Floquet side-bands and counter-intuitive scattering. Explanations are found by examining the scattering dynamics comparatively using quantum, classical and semiclassical pictures, indicating a rich system and experimentally accessible method to explore quantum versus classical dynamics.

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Kunal. K. Das, Matthew R. Meehan, Andrew J. Pyle. 2014-07-04. Quantum Paddlewheel with Ultracold Atoms in Waveguides. https://doi.org/10.1103/physreva.89.063626

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