Probing the dynamics of spontaneous quantum vortices in polariton superfluids

K. G. Lagoudakis, F. Manni, B. Pietka, M. Wouters, T. C. H. Liew, V. Savona, A. V. Kavokin, R. André, B. Deveaud-Plédran

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Abstract

The experimental investigation of spontaneously created vortices is of utmost importance for the understanding of quantum phase transitions towards a superfluid phase, especially for two-dimensional systems that are expected to be governed by the Berezinski-Kosterlitz-Thouless physics. By means of time-resolved near-field interferometry we track the path of such vortices, created at random locations in an exciton-polariton condensate under pulsed nonresonant excitation, to their final pinning positions imposed by the stationary disorder. We formulate a theoretical model that successfully reproduces the experimental observations.
Original languageUndefined/Unknown
Article number115301
Number of pages4
JournalPhys. Rev. Lett.
Volume106
Issue number11
DOIs
Publication statusPublished - 1 Mar 2011

Keywords

  • quantum vortices
  • polariton superfluids
  • quantum phase transitions

Cite this

Lagoudakis, K. G., Manni, F., Pietka, B., Wouters, M., Liew, T. C. H., Savona, V., ... Deveaud-Plédran, B. (2011). Probing the dynamics of spontaneous quantum vortices in polariton superfluids. Phys. Rev. Lett., 106(11), [115301]. https://doi.org/10.1103/PhysRevLett.106.115301