Generation of vortex dipoles in superfluid Fermi gas in BCS limit

S. Gautam

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Generation of vortex dipoles in superfluid Fermi gas in BCS limit

S. Gautam

Quantum Gases · Submitted 25 May 2012

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We observe that in pancake-shaped traps, the shock waves can lead to the formation of density ripples, which decay into vortex dipoles due to the onset of snake instability.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 2,966 input tokens, $0.0001 reported.

What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.09 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.05 · compares with prior results 0.06 · mentions code or data availability 0.02.

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arXiv listing abstract v2. Results and the main claim are underlined; show every role.

We theoretically investigate the generation of the vortex dipoles in superfluid Fermi gas in the BCS limit. The vortex dipoles are generated in superfluid either by moving an obstacle above a critical speed or due to the decay of the shock waves obtained on the sudden mixing of two superfluid fragments. We observe that in pancake-shaped traps, the shock waves can lead to the formation of density ripples, which decay into vortex dipoles due to the onset of snake instability.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We theoretically investigate the generation of the vortex dipoles in superfluid Fermi gas in the BCS limit.	contribution 0.99	0.85	0.07	asserted 0.74
s1	The vortex dipoles are generated in superfluid either by moving an obstacle above a critical speed or due to the decay of the shock waves obtained on the sudden mixing of two superfluid fragments.	background 0.91	0.13	0.16	asserted 1.00
s2	We observe that in pancake-shaped traps, the shock waves can lead to the formation of density ripples, which decay into vortex dipoles due to the onset of snake instability.	result 1.00	0.87	0.34	asserted 1.00

What kind of paper the classifier reports this is: theoretical result 0.79 · evidence from simulation or computation 0.81.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We theoretically investigate the generation of the vortex dipoles in superfluid Fermi gas in the BCS limit. The vortex dipoles are generated in superfluid either by moving an obstacle above a critical speed or due to the decay of the shock waves obtained on the sudden mixing of two superfluid fragments. We observe that in pancake-shaped traps, the shock waves can lead to the formation of density ripples, which decay into vortex dipoles due to the onset of snake instability.

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2 arXiv papers cite this in 2 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

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Cites it as background 2 papers

Recently, NLSE has also been used to investigate the soliton mediated decay of shock waves into vortex dipoles in the oblate BCS superfluids [ref] .

Crow instability in unitary Fermi gas · Introduction · 0.83
Vortex dipoles in a Fermi gas were studied theoretically, within an extended Thomas-Fermi approach, in the BCS limit [ref] .

Critical velocity, vortex shedding and drag in a unitary Fermi superfluid · INTRODUCTION · 0.97

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