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Synthetic dissipation and cascade fluxes in a turbulent quantum gas

Abstract:

Scale-invariant fluxes are the defining property of turbulent cascades, but their direct measurement is a challenging experimental problem. Here we perform such a measurement for a direct energy cascade in a turbulent quantum gas. Using a time-periodic force, we inject energy at a large length scale and generate a cascade in a uniformly trapped three-dimensional Bose gas. The adjustable trap depth provides a high-momentum cutoff kD, which realizes a synthetic dissipation scale. This gives us ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1126/science.aau6103

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Publisher:
American Association for the Advancement of Science Publisher's website
Journal:
Science Journal website
Volume:
366
Issue:
6463
Pages:
382-385
Publication date:
2019-10-18
Acceptance date:
2019-09-25
DOI:
Pubs id:
pubs:890988
URN:
uri:853a6b31-3432-40d6-ace6-555cdb3b959e
UUID:
uuid:853a6b31-3432-40d6-ace6-555cdb3b959e
Local pid:
pubs:890988
Keywords:

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