title: Comment on "Steady-state properties of a totally asymmetric exclusion process with periodic structure".
abstract: Lakatos et al.[Phys. Rev. E 71, 011103 (2005)] have studied a totally asymmetric exclusion process that contains periodically varying movement rates. They have presented a cluster mean-field theory for the problem. We show that their cluster mean-field theory leads to redundant equations. We present a mean-field analysis in which there is no redundant equation.
authors.affiliation: School of Engineering Science, University of Science and Technology of China, Hefei, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Jiang
authors.forename: Mao-Bin
authors.initials: MB
authors.lastname: Hu
authors.forename: Qing-Song
authors.initials: QS
authors.lastname: Wu