Merging of vortices and antivortices in polariton superfluids

E. Cancellieri, T. Boulier, R. Hivet, D. Ballarini, D. Sanvitto, M. H. Szymanska, C. Ciuti, E. Giacobino, and A. Bramati
Phys. Rev. B 90, 214518 – Published 19 December 2014

Abstract

Quantized vortices are remarkable manifestations on a macroscopic scale of the coherent nature of quantum fluids, and the study of their properties is of fundamental importance for the understanding of this peculiar state of matter. Cavity polaritons, due to their double light-matter nature, offer a unique controllable environment to investigate these properties. In this paper we theoretically investigate the possibility to deterministically achieve the annihilation of a vortex with an antivortex through an increase of the polariton density in the region surrounding the vortices. Moreover, we demonstrate that by means of this mechanism an array of vortex-antivortex pairs can be completely washed out.

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  • Received 16 May 2014
  • Revised 15 October 2014

DOI:https://doi.org/10.1103/PhysRevB.90.214518

©2014 American Physical Society

Authors & Affiliations

E. Cancellieri1,2, T. Boulier1, R. Hivet1, D. Ballarini3, D. Sanvitto3, M. H. Szymanska4, C. Ciuti5, E. Giacobino1, and A. Bramati1

  • 1Laboratoire Kastler Brossel, Université Pierre et Marie Curie, Ecole Normale Supérieure et CNRS, UPMC case 74, 4 place Jussieu, 75005 Paris, France
  • 2Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
  • 3NNL, Istituto Nanoscienze–CNR, Via Arnesano, 73100 Lecce, Italy
  • 4Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
  • 5Laboratoire Matériaux et Phénoménes Quantiques, UMR 7162, Université Paris Diderot-Paris 7 et CNRS, 75013 Paris, France

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Issue

Vol. 90, Iss. 21 — 1 December 2014

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