All-optical control of the quantum flow of a polariton condensate View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2011-10

AUTHORS

D. Sanvitto, S. Pigeon, A. Amo, D. Ballarini, M. De Giorgi, I. Carusotto, R. Hivet, F. Pisanello, V. G. Sala, P. S. S. Guimaraes, R. Houdré, E. Giacobino, C. Ciuti, A. Bramati, G. Gigli

ABSTRACT

Although photons in vacuum are massless particles that do not appreciably interact with each other, significant interactions appear in suitable nonlinear media, leading to hydrodynamic behaviours typical of quantum fluids1,2,3,4,5,6. Here, we show the generation and manipulation of vortex–antivortex pairs in a coherent gas of strongly dressed photons (polaritons) flowing against an artificial potential barrier created and controlled by a light beam in a semiconductor microcavity. The optical control of the polariton flow allows us to reveal new quantum hydrodynamical phenomenologies such as the formation of vortex pairs upstream from the optical barrier, a case of ultrashort time excitation of the quantum flow, and the generation of vortices with counterflow trajectories. Additionally, we demonstrate how to permanently trap and store quantum vortices hydrodynamically generated in the wake of a defect. These observations are supported by time-dependent simulations based on the non-equilibrium Gross–Pitaevskii equation7. More... »

PAGES

610

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/nphoton.2011.211

DOI

http://dx.doi.org/10.1038/nphoton.2011.211

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1000281569


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274 https://www.grid.ac/institutes/grid.5333.6 schema:alternateName École Polytechnique Fédérale de Lausanne
275 schema:name Institut de Physique de la Matière Condensée, Faculté des Sciences de Base, bâtiment de Physique, Station 3, EPFL, CH-1015 Lausanne, Switzerland
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277 https://www.grid.ac/institutes/grid.8430.f schema:alternateName Universidade Federal de Minas Gerais
278 schema:name Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte MG, Brazil
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281 schema:name Dipartimento Ing. Innovazione, Universitá del Salento, Via Arnesano, 73100 Lecce, Italy
282 Istituto Italiano di Tecnologia, IIT-Lecce, Via Barsanti, 73010 Lecce, Italy
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