title: Extended order parameter and conjugate field for the dynamic phase transition in a Ginzburg-Landau mean-field model in an oscillating field.
abstract: We present numerical evidence for an extended order parameter and conjugate field for the dynamic phase transition in a Ginzburg-Landau mean-field model driven by an oscillating field. The order parameter, previously taken to be the time-averaged magnetization, comprises the deviations of the Fourier components of the magnetization from their values at the critical period. The conjugate field, previously taken to be the time-averaged magnetic field, comprises the even Fourier components of the field. The scaling exponents β and δ associated with the extended order parameter and conjugate field are shown numerically to be consistent with their values in the equilibrium mean-field model.
authors.affiliation: Department of Mathematics, Computer Science and Physics, Roanoke College, Salem, Virginia 24153, USA and Department of Physics, Astronomy and Geology, Berry College, Mount Berry, Georgia 30149, USA.
authors.forename: Daniel T
authors.initials: DT
authors.lastname: Robb
authors.affiliation: University of Maryland, College Park, Maryland 20742, USA and Department of Physics, Astronomy and Geology, Berry College, Mount Berry, Georgia 30149, USA.
authors.forename: Aaron
authors.initials: A
authors.lastname: Ostrander