The piston Riemann problem in a photon superfluid.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
06 Jun 2022
06 Jun 2022
Historique:
received:
19
04
2021
accepted:
12
05
2022
entrez:
6
6
2022
pubmed:
7
6
2022
medline:
7
6
2022
Statut:
epublish
Résumé
Light flow in nonlinear media can exhibit quantum hydrodynamical features which are profoundly different from those of classical fluids. Here, we show that a rather extreme regime of quantum hydrodynamics can be accessed by exploring the piston problem (a paradigm in gas dynamics) for light, and its generalization, named after the celebrated mathematician Riemann, where the piston acts on a concomitant abrupt change of photon density. Our experiment reveals regimes featuring optical rarefaction (retracting piston) or shock (pushing piston) wave pairs, and most importantly the transition to a peculiar type of flow, occurring above a precise critical piston velocity, where the light shocks are smoothly interconnected by a large contrast, periodic, fully nonlinear wave. The transition to such extreme hydrodynamic state is generic for superfluids, but to date remained elusive to any other quantum fluid system. Our full-fiber setup used to observe this phenomenon in temporal domain proves to be a versatile alternative to other platforms currently employed to investigate the hydrodynamical properties of quantum fluids of light.
Identifiants
pubmed: 35668094
doi: 10.1038/s41467-022-30734-5
pii: 10.1038/s41467-022-30734-5
pmc: PMC9170689
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3137Subventions
Organisme : Agence Nationale de la Recherche (French National Research Agency)
ID : VERIFICO
Organisme : Agence Nationale de la Recherche (French National Research Agency)
ID : FELANI
Organisme : EC | European Regional Development Fund (Europski Fond za Regionalni Razvoj)
ID : P4S
Organisme : Ministero dell'Istruzione, dell'Università e della Ricerca (Ministry of Education, University and Research)
ID : PRIN-2020X4T57A
Informations de copyright
© 2022. The Author(s).
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