SEARCH Articles Figures Tables Effective interaction between ions higher order Effects of Higher-order Electrostatic Terms Higher order nonlinear effects Higher-order QED effects Jahn-Teller effect higher order coupling Membrane Roughness and Dispersive Phase as Effects of Higher-order Polarization higher-order effects Stark effect higher order The Absence of Second-Order Effects at Higher Field The Effective Interaction Between Ions, and Higher-Order Terms The Zero- and Higher-Order Effective Hamiltonians