1.
Phys Rev E Stat Nonlin Soft Matter Phys
; 66(4 Pt 2): 047102, 2002 Oct.
Article
in English
| MEDLINE
| ID: mdl-12443383
ABSTRACT
We introduce two self-organized growth models that describe the motion of the driven interfaces in random media including the Kardar-Parisi-Zhang (KPZ) nonlinearity. One model follows the quenched KPZ equation with a positive nonlinear term, while the other model follows the quenched KPZ equation with a negative nonlinear term. By obtaining the critical exponents for two models, we confirm that the sign of the KPZ nonlinear term does not affect the universality class.