Dynamic exchange-correlation potentials for the 2D electron gas |
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Authors: | R Nifosì S Conti M P Tosi |
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Abstract: | Recent progress in the formulation of a fully dynamical local approximation to time-dependent density functional theory (TD-DFT) appeals to the longitudinal and transverse components of the long-wavelength exchange and correlation kernel in the homogeneous electron gas,
. We extend to the two-dimensional longitudinal and transverse case our work on the 3D
J. Phys.: Condens. Matter 9 (1997) 475], which accounts for two-pair excitations through an approximate decoupling of the equation of motion for the current–current response function. We present numerical results and compare with asymptotic behaviours and previous approximations. |
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Keywords: | (Time-dependent) density functional theory Dynamic exchange-correlation potentials |
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