Year: 2025
Type: article
Abstract: Quantum vortices are commonly described as funnel-like objects around which the superfluid swirls, and their motion is typically modeled in terms of massless particles. Here we show that in Fermi superfluids the normal component confined in the vortex core provides the vortex with a finite inertial mass. This inertia imparts an unambiguous signature to the dynamic behavior of vortices, specifically manifesting as small-amplitude transverse oscillations which remarkably follow the prediction of a simple point-like model supplemented by an effective mass. We demonstrate this phenomenon through large-scale time-dependent simulations of Fermi superfluids across a wide range of interaction parameters, at both zero and finite temperatures, and for various initial conditions. Our findings pave the way for the exploration of inertial effects in superfluid vortex dynamics.
Source: Physical Review A
DOI: 10.1103/zcb4-dldf
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: “la Caixa” Foundation, Ministerio de Ciencia, Innovación y Universidades, European Commission, Agence Nationale de la Recherche, Institució Catalana de Recerca i Estudis Avançats, Narodowe Centrum Nauki, Narodowym Centrum Nauki, China Scholarship Council, Centre National de la Recherche Scientifique, Infrastruktura PL-Grid, Institut Henri Poincaré, Sorbonne Université, Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona, Agencia Estatal de Investigación, H2020 Marie Skłodowska-Curie Actions, NextGenerationEU, Vermont Agency of Natural Resources
Awards: G2879864793, G2897628663, G308764456, G3375465512, G3480869486, G5058101487, G5356239126, G5443090575, G593054264, G6363417690, G6389258043, G6453481984, G6505494016, G702465783, G7084143925, G7240651115, G7342182005, G7541029346, G777498305, G8305067150, G8367245246, G8961722618, G972786147
OpenAlex ID: W4403578079