Topological pathways to two-dimensional quantum turbulence

We present a combined experimental and theoretical investigation of the formation and decay kinetics of vortices in two-dimensional, compressible quantum turbulence. We follow the temporal evolution of a quantum fluid of exciton polaritons, hybrid light-matter quasiparticles, and measure both phase and modulus of the order parameter in the turbulent regime. Fundamental topological conservation laws require that the formation and annihilation of vortices also involve critical points of the velocity field, namely nodes and saddles. Identifying the simplest mechanisms underlying these processes enables us to develop an effective kinetic model that closely aligns with the experimental observations, and shows that different processes are responsible for vortex number growth and decay. These findings underscore the crucial role played by topological constraints in shaping nonlinear, turbulent evolution of two-dimensional quantum fluids.

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Publication Details

Journal
Physical Review Research
Published
2025-06-11
DOI
https://doi.org/10.1103/physrevresearch.7.l022063
Citations
1
Primary Topic
Quantum, superfluid, helium dynamics
Type
article
Field-Weighted Citation Impact
1.25

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article

Topological pathways to two-dimensional quantum turbulence

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1 citations
Physical Review Research
Quantum, superfluid, helium dynamics
1.25
article

Topological pathways to two-dimensional quantum turbulence

Nicolas Pavloff, Giovanni I. Martone, T. Congy, Alessandra S. Lanotte, Riccardo Panico, Dario Ballarini, Giorgio Ciliberto
article en
1 citations

Abstract

We present a combined experimental and theoretical investigation of the formation and decay kinetics of vortices in two-dimensional, compressible quantum turbulence. We follow the temporal evolution of a quantum fluid of exciton polaritons, hybrid light-matter quasiparticles, and measure both phase and modulus of the order parameter in the turbulent regime. Fundamental topological conservation laws require that the formation and annihilation of vortices also involve critical points of the velocity field, namely nodes and saddles. Identifying the simplest mechanisms underlying these processes enables us to develop an effective kinetic model that closely aligns with the experimental observations, and shows that different processes are responsible for vortex number growth and decay. These findings underscore the crucial role played by topological constraints in shaping nonlinear, turbulent evolution of two-dimensional quantum fluids.

Physical Review ResearchVol. 7(2)
University of Bonn (DE), Institut Universitaire de France (FR), Université Paris-Saclay (FR), Northumbria University (GB), Istituto di Nanotecnologia (IT), Istituto Nazionale di Fisica Nucleare, Sezione di Lecce (IT), Institute of Nanotechnology (GB)
Isaac Newton Institute for Mathematical Sciences, International Centre for Theoretical Sciences, European Commission, Ministero dell'Università e della Ricerca, Division of Mathematical Sciences, HORIZON EUROPE European Innovation Council
Life in Land
Openalex Percentile: Top 25%
Quantum, superfluid, helium dynamics
1.25
DOIOpen Access PDFOpenAlex
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