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Supersonic rotation of a superfluid: a long-lived dynamical ring
Quantum Gases · Submitted 3 Jul 2019
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We present the experimental realization of a long-lived superfluid flow of a quantum gas rotating in an anharmonic potential, sustained by its own angular momentum.
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
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The abstract, sentence by sentence
We present the experimental realization of a long-lived superfluid flow of a quantum gas rotating in an anharmonic potential, sustained by its own angular momentum. The gas is set into motion by rotating an elliptical deformation of the trap. An evaporation selective in angular momentum yields an acceleration of rotation until the density vanishes at the trap center, resulting in a dynamical ring with 350 hbar angular momentum per particle. The density profile of the ring corresponds to the one of a quasi two-dimensional superfluid, with a linear velocity reaching Mach 18 and a rotation lasting more than a minute.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present the experimental realization of a long-lived superfluid flow of a quantum gas rotating in an anharmonic potential, sustained by its own angular momentum. | contribution 0.97 | 0.95 | 0.69 | asserted 1.00 |
| s1 | The gas is set into motion by rotating an elliptical deformation of the trap. | method 1.00 | 0.87 | 0.03 | asserted 1.00 |
| s2 | An evaporation selective in angular momentum yields an acceleration of rotation until the density vanishes at the trap center, resulting in a dynamical ring with 350 hbar angular momentum per particle. | method 0.51 | 0.93 | 0.25 | asserted 1.00 |
| s3 | The density profile of the ring corresponds to the one of a quasi two-dimensional superfluid, with a linear velocity reaching Mach 18 and a rotation lasting more than a minute. | result 1.00 | 0.93 | 0.37 | asserted 1.00 |
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The paper
Original abstract
We present the experimental realization of a long-lived superfluid flow of a quantum gas rotating in an anharmonic potential, sustained by its own angular momentum. The gas is set into motion by rotating an elliptical deformation of the trap. An evaporation selective in angular momentum yields an acceleration of rotation until the density vanishes at the trap center, resulting in a dynamical ring with 350 hbar angular momentum per particle. The density profile of the ring corresponds to the one of a quasi two-dimensional superfluid, with a linear velocity reaching Mach 18 and a rotation lasting more than a minute.
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How the literature uses it
3 arXiv papers cite this in 4 sentences
Papers citing it · 2 sentences without a confident label
Cites it as support 1 paper
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Intriguingly, recent experimental results suggest that the dispersion relation [ref] might be a good approximation already at moderate rotation speed [ref] .
Chiral Modes of Giant Superfluid Vortices · Introduction · 0.97
Cites it as background 1 paper
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Persistent currents have been the object of intense studies in different contexts of quantum technologies like cold atoms [ref] , superconducting circuits [ref] , optical cavities [ref] , opto-mechanical cavities [ref] and tailored reservoirs [ref] .
Machine learning engineering of quantum currents · Introduction · 0.97
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