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Antiferromagnetic Ising model in a triangular vortex lattice of quantum fluids of light.
Alyatkin, Sergey; Milián, Carles; Kartashov, Yaroslav V; Sitnik, Kirill A; Gnusov, Ivan; Töpfer, Julian D; Sigurðsson, Helgi; Lagoudakis, Pavlos G.
Afiliación
  • Alyatkin S; Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Moscow, Territory of innovation center "Skolkovo," Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russia.
  • Milián C; Institut Universitari de Matemàtica Pura i Aplicada, Universitat Politècnica de València, 46022 València, Spain.
  • Kartashov YV; Institute of Spectroscopy of Russian Academy of Sciences, Fizicheskaya Str., 5, Troitsk, Moscow 108840, Russia.
  • Sitnik KA; Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Moscow, Territory of innovation center "Skolkovo," Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russia.
  • Gnusov I; Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Moscow, Territory of innovation center "Skolkovo," Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russia.
  • Töpfer JD; Hybrid Photonics Laboratory, Skolkovo Institute of Science and Technology, Moscow, Territory of innovation center "Skolkovo," Bolshoy Boulevard 30, bld. 1, Moscow 121205, Russia.
  • Sigurðsson H; Institute of Experimental Physics, Faculty of Physics, University of Warsaw, ul. Pasteura 5, PL-02-093 Warsaw, Poland.
  • Lagoudakis PG; Science Institute, University of Iceland, Dunhagi 3, IS-107, Reykjavik, Iceland.
Sci Adv ; 10(34): eadj1589, 2024 Aug 23.
Article en En | MEDLINE | ID: mdl-39178267
ABSTRACT
Vortices are topologically distinctive objects appearing as phase twists in coherent fields of optical beams and Bose-Einstein condensates. Structured networks and artificial lattices of coupled vortices could offer a powerful platform to study and simulate interaction mechanisms between constituents of condensed matter systems, such as antiferromagnetic interactions, by replacement of spin angular momentum with orbital angular momentum. Here, we realize such a platform using a macroscopic quantum fluid of light based on exciton-polariton condensates. We imprint all-optical hexagonal lattice that results into a triangular vortex lattice, with each cell having a vortex of charge l = ±1. We reveal that pairs of coupled condensates spontaneously arrange their orbital angular momentum antiparallel, implying a form of artificial orbital "antiferromagnetism." We discover that correlation exists between the emergent vortex patterns in triangular condensate lattices and the low-energy solutions of the corresponding antiferromagnetic Ising system. Our study offers a path toward spontaneously ordered vortex arrays with nearly arbitrary configurations and controlled couplings.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2024 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2024 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos