Title
Probing the dynamics of spontaneous quantum vortices in polariton superfluids
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
106(2011) :11 , 4 p.
ISSN
0031-9007
Article Reference
115301
ISI
000288450800012
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
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.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/2c986f/572dd08c.pdf
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