Renormalization group analysis of the anisotropic nonlocal kardar-parisi-zhang equation with spatially correlated noise
We study an anisotropic nonlocal Kardar-Parisi-Zhang (KPZ) equation with spatially correlated noise by using the dynamic renormalization group method. When the signs of nonlinear terms in parallel and perpendicular directions are opposite, the correlated noise coupled with the long ranged nature of interaction produces a stable non-KPZ fixed point for d<d(c). For the uncorrelated noise, the roughness and dynamic exponents associated with the stable fixed point are different from those of the isotropic nonlocal KPZ equation, while for the correlated noise the exponents are the same as those of the isotropic case.
Jung
Y
Department of Physics, Korea University, Seoul 136-701, Korea.
Park
K
Kim
HJ
Kim
Im