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Many-body GW Calculations of Ground-State Properties: Quasi-2D Electron Systems and van der Waals Forces

P. Garcia-Gonzalez·R. W. Godby
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Abstract

We present GW many-body results for ground-state properties of two simple but very distinct families of inhomogenous 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.

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P. Garcia-Gonzalez, R. W. Godby. 2001-11-06. Many-body GW Calculations of Ground-State Properties: Quasi-2D Electron Systems and van der Waals Forces. https://doi.org/10.1103/physrevlett.88.056406

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