TY - JOUR
KW - paper
AU - Olivia Pulci
AU - Lucia Reining
AU - G Onida
AU - Rodolfo Del Sole
AU - F. Bechstedt
AB - We have studied the quasiparticle (QP) wave functions and energies of the GaAs(1 1 0) surface and of the cluster Na-4 within Hedin\textquoterights GW approximation. We found that the commonly accepted assumption that the Density Functional Theory (DFT)-Local Density Approximation (LDA) wave functions are a very good approximation for the true QP ones can be wrong. We analyze the effect of the resulting changes in the wave functions on the optical spectra. (C) 2001 Elsevier Science B.V. All rights reserved.
BT - Comp. Mat. Science
CY - PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
DA - MAR
M1 - 3-4
N2 - We have studied the quasiparticle (QP) wave functions and energies of the GaAs(1 1 0) surface and of the cluster Na-4 within Hedin\textquoterights GW approximation. We found that the commonly accepted assumption that the Density Functional Theory (DFT)-Local Density Approximation (LDA) wave functions are a very good approximation for the true QP ones can be wrong. We analyze the effect of the resulting changes in the wave functions on the optical spectra. (C) 2001 Elsevier Science B.V. All rights reserved.
PB - ELSEVIER SCIENCE BV
PP - PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
PY - 2001
SP - 300
EP - 304
T2 - Comp. Mat. Science
TI - Many-body effects on one-electron energies and wave functions in low-dimensional systems
VL - 20
ER -