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Random-phase approximation and its applications in computational chemistry and materials science

Author: Xinguo Ren, Patrick Rinke, Christian Joas, Matthias Scheffler
Url: http://arxiv.org/abs/1203.5536
Format: Ps, Pdf, TeX
Year: 2012
Category: The GW method
Pages: 25
Clicks: 286

The random-phase approximation (RPA) as an approach for computing the electronic correlation energy is reviewed. After a brief account of its basic concept and historical development, the paper is devoted to the theoretical formulations of RPA, and its applications to realistic systems. With several illustrating applications, we discuss the implications of RPA for computational chemistry and materials science. The computational cost of RPA is also addressed which is critical for its widespread use in future applications. In addition, directions of further development and current correction schemes going beyond RPA will be discussed.

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