Onset of vortex clustering and inverse energy cascade in dissipative quantum fluids

Autor:	R. Panico, P. Comaron, M. Matuszewski, A. S. Lanotte, D. Trypogeorgos, G. Gigli, M. De Giorgi, V. Ardizzone, D. Sanvitto, D. Ballarini
Rok vydání:	2023
Předmět:	Condensed Matter::Quantum Gases Physics::Fluid Dynamics Quantum Gases (cond-mat.quant-gas) FOS: Physical sciences Condensed Matter - Quantum Gases Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials
Zdroj:	Nature Photonics. 17:451-456
ISSN:	1749-4893 1749-4885
DOI:	10.1038/s41566-023-01174-4
Popis:	Turbulent phenomena are among the most striking effects that both classical and quantum fluids can exhibit. While classical turbulence is ubiquitous in nature, the observation of quantum turbulence requires the precise manipulation of quantum fluids such as superfluid helium or atomic Bose-Einstein condensates. In this work we demonstrate the turbulent dynamics of a 2D quantum fluid of exciton-polaritons, hybrid light-matter quasiparticles, both by measuring the kinetic energy spectrum and showing the onset of vortex clustering. We demonstrate that the formation of clusters of quantum vortices is triggered by the increase of the incompressible kinetic energy per vortex, showing the tendency of the vortex-gas towards highly excited configurations despite the dissipative nature of our system. These results lay the basis for the investigations of quantum turbulence in two-dimensional fluids of light.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf63482a54a8424fdca483eca4deb715 https://doi.org/10.1038/s41566-023-01174-4 Zobrazit plný text záznamu Full text from SpringerLink