Viability of competing field theories for the driven lattice gas
It has recently been suggested that the driven lattice gas should be described by an alternate field theory in the limit of infinite drive. We review the original and the alternate field theory, invoking several well-documented key features of the microscopics. Since the alternate field theory fails to reproduce these characteristics, we argue that it cannot serve as a viable description of the driven lattice gas. Recent results, for the critical exponents associated with this theory, are reanalyzed and shown to be incorrect.
Schmittmann
B
Center for Stochastic Processes in Science and Engineering, Virginia Tech, Blacksburg 24061-0435, USA.
Janssen
HK
Tauber
UC
Zia
RK
Leung
K
Cardy
JL