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arXiv · 2112.12408

Atomtronic Many-Body Transport using Husimi Driving

B. J. Mommers·A. Pritchard·T. A. Bell·R. N. Kohn Jr.·S. E. Olson·M. Baker·M. W. J. Bromley
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Abstract

Quantum systems with exact analytic solutions are rare - challenging the realisation of excitation-free transport methods for many-body systems. Husimi's 1953 treatment of linearly driven harmonic oscillators constitutes an important exception, describing a wavepacket which is spatially translated but otherwise unperturbed by the driving. In this work, we experimentally demonstrate the application of Husimi's solution to an interacting many-body system, namely optically- and magnetically-trapped Bose-Einstein condensates subject to resonant and off-resonant linear magnetic driving potentials. The observed centre-of-mass motion is consistent with theory and shows minimal excitation of the displaced condensate - a highly desirable property of any condensate manipulation technique. We demonstrate transport 72 times faster than adiabatic rates, and a novel Husimi driving-based trap frequency measurement. We finally propose future applications based on our experimental results: an atom interferometry scheme, and methods for extended transport and precision control of one-body, few-body, and many-body systems via Husimi driving.

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B. J. Mommers, A. Pritchard, T. A. Bell, R. N. Kohn Jr., S. E. Olson, M. Baker, M. W. J. Bromley. 2021-12-23. Atomtronic Many-Body Transport using Husimi Driving. https://arxiv.org/abs/2112.12408

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