Probing the Dynamics of Spontaneous Quantum Vortices in Polariton Superfluids
Quantum Gases
2011-03-22 v2
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 non-resonant excitation, to their final pinning positions imposed by the stationary disorder. We formulate a theoretical model that successfully reproduces the experimental observations.
Keywords
Cite
@article{arxiv.1009.5907,
title = {Probing the Dynamics of Spontaneous Quantum Vortices in Polariton Superfluids},
author = {K. G. Lagoudakis and F. Manni and B. Pietka and M. Wouters and T. C. H. Liew and V. Savona and A. V. Kavokin and R. André and B. Deveaud-Plédran},
journal= {arXiv preprint arXiv:1009.5907},
year = {2011}
}