Coupled nonequilibrium growth equations: self-consistent mode coupling using vertex renormalization
We find that studying the simplest of the coupled nonequilibrium growth equations of Barabasi by self-consistent mode coupling requires the use of dressed vertices. Using the vertex renormalization, we find a roughening exponent which already in the leading order is quite close to the numerical value.
Chattopadhyay
AK
Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700 032, India.
Basu
A
Bhattacharjee
JK