Frictionless Flow in a Binary Polariton Superfluid

E. Cancellieri, F. M. Marchetti, M. H. Szymańska, D. Sanvitto, and C. Tejedor
Phys. Rev. Lett. 108, 065301 – Published 8 February 2012; Erratum Phys. Rev. Lett. 113, 169902 (2014)
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Abstract

We study the properties of a binary microcavity polariton superfluid coherently injected by two lasers at different momenta and energies. The crossover from the supersonic to the subsonic regime, where motion is frictionless, is described by evaluating the linear response of the system to a weak defect potential. We show that the coupling between the two components requires that either both components flow without friction or both scatter against the defect, though scattering can be small when the two fluids are weakly coupled. By analyzing the drag force exerted on a defect, we give a recipe to experimentally address the crossover from the supersonic to the subsonic regime.

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  • Received 22 July 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.065301

© 2012 American Physical Society

Erratum

Erratum: Frictionless Flow in a Binary Polariton Superfluid [Phys. Rev. Lett. 108, 065301 (2012)]

E. Cancellieri, F. M. Marchetti, M. H. Szymańska, D. Sanvitto, and C. Tejedor
Phys. Rev. Lett. 113, 169902 (2014)

Authors & Affiliations

E. Cancellieri1,*, F. M. Marchetti1, M. H. Szymańska2,†, D. Sanvitto3,4, and C. Tejedor1

  • 1Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, Spain
  • 2Department of Physics, University of Warwick, Coventry, United Kingdom
  • 3NNL, Istituto Nanoscienze–CNR, Lecce, Italy
  • 4Italian Institute of Technology (IIT-CBN), Lecce, Italy

  • *Corresponding author. emiliano.cancellieri@uam.es
  • Also at London Centre for Nanotechnology, London, U.K.

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Issue

Vol. 108, Iss. 6 — 10 February 2012

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