Accessing Kardar-Parisi-Zhang universality sub-classes with exciton polaritons
| Autor: | Davide Squizzato, Anna Minguzzi, Konstantinos Deligiannis, Léonie Canet |
|---|---|
| Přispěvatelé: | Laboratoire de physique et modélisation des milieux condensés (LPM2C ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases [PHYS]Physics [physics] Statistical Mechanics (cond-mat.stat-mech) Condensed Matter::Other Zhàng Phase (waves) General Physics and Astronomy FOS: Physical sciences Exciton-polaritons Renormalization group Covariance 01 natural sciences 3. Good health 010305 fluids & plasmas Universality (dynamical systems) Distribution (mathematics) Quantum Gases (cond-mat.quant-gas) 0103 physical sciences Polariton Condensed Matter::Statistical Mechanics Statistical physics 010306 general physics Condensed Matter - Quantum Gases Condensed Matter - Statistical Mechanics |
| Zdroj: | EPL-Europhysics Letters EPL-Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2021, ⟨10.1209/0295-5075/132/67004⟩ |
| ISSN: | 0295-5075 1286-4854 |
| DOI: | 10.1209/0295-5075/132/67004⟩ |
| Popis: | Exciton-polariton condensates under driven-dissipative conditions are predicted to belong to the Kardar-Parisi-Zhang (KPZ) universality class, the dynamics of the condensate phase satisfying the same equation as for classical stochastic interface growth at long distance. We show that by engineering an external confinement for one-dimensional polaritons we can access two different universality sub-classes, which are associated to the flat or curved geometry for the interface. Our results for the condensate phase distribution and correlations match with great accuracy with the exact theoretical results for KPZ: the Tracy-Widom distributions (GOE and GUE) for the one-point statistics, and covariance of Airy processes (Airy1 and Airy2) for the two-point statistics. This study promotes the exciton-polariton system as a compelling platform to investigate KPZ universal properties. Comment: 16 pages, 14 figures. Updated Fig. 2 and added Fig. 5 and Fig. 6, minor review done |
| Databáze: | OpenAIRE |
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