title: Note: Determine entanglement length through monomer mean-square displacement.
abstract: I present a refined version of the method for determining entanglement length through monomer mean-square displacement. By retrieving a prefactor π/2 that might be lost in previous derivation, the entanglement length of the standard bead-spring model estimated by this method coincides with the measurements of other methods.
authors.affiliation: Department of Physics, Southeast University, Nanjing 211189, China.
authors.forename: Ji-Xuan
authors.initials: JX
authors.lastname: Hou