We present GW many-body results for ground-state properties of two simple but very distinct families of inhomogeneous systems in which traditional implementations of density-functional theory (DFT) fail drastically. The GW approach gives notably better results than the well-known random-phase approximation, at a similar computational cost. These results establish GW as a superior alternative to standard DFT schemes without the expensive numerical effort required by quantum Monte Carlo simulations.
|Number of pages||4|
|Journal||Physical Review Letters|
|Publication status||Published - 4 Feb 2002|
Bibliographical note© 2002 American Physical Society. Published in Physical Review Letters and uploaded in accordance with the publisher's self archiving policy.
- SPACE-TIME METHOD
- DENSITY-FUNCTIONAL THEORY
- TOTAL ENERGIES