期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 11, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.115301
关键词
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资金
- Swiss National Research Foundation through NCCR Quantum Photonics.
- EPSRC [EP/F026455/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/F026455/1] Funding Source: researchfish
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.
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