Strong Coupling in Conserved Surface Roughening: A New Universality Class?

Strong Coupling in Conserved Surface Roughening: A New Universality Class?

The Kardar-Parisi-Zhang (KPZ) equation defines the main universality class for nonlinear growth and roughening of surfaces. But under certain conditions, a conserved KPZ equation (CKPZ) is thought to set the universality class instead. This has non-mean-field behavior only in spatial dimension d1. I...

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Veröffentlicht in:Physical review letters 2018-07, Vol.121 (2), p.020601-020601, Article 020601
Hauptverfasser: Caballero, Fernando, Nardini, Cesare, van Wijland, Frédéric, Cates, Michael E
Format: Artikel
Sprache:eng
Schlagworte:
Condensed Matter
Coupling
Mathematical models
Mathematical Physics
Numerical integration
Phase transitions
Physics
Roughening
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Zusammenfassung:The Kardar-Parisi-Zhang (KPZ) equation defines the main universality class for nonlinear growth and roughening of surfaces. But under certain conditions, a conserved KPZ equation (CKPZ) is thought to set the universality class instead. This has non-mean-field behavior only in spatial dimension d1. In this phase, numerical integration of the model in d=2 gives clear evidence of non-mean-field behavior.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.121.020601