Home Newsletter
News Books
Welcome to FreeScience.info Language/Lingua

Books 3054
· Book News
· Most clicked
· Least clicked

Search for a Book
Add a new Book

Hedin Equations, GW, GW DMFT, and All That

Author: K. Held, C. Taranto, G. Rohringer, A. Toschi
Url: http://arxiv.org/abs/1109.3972
Format: Ps, Pdf
Year: 2011
Category: The GW method
Pages: 22
Clicks: 251

Historically, the GW approach was put forward by Hedin as the simplest approximation to the so-called Hedin equations. In Section 2, we will derive these Hedin equations from a Feynman-diagrammatical point of view. Section 3.1 shows how GW arises as an approximation to the Hedin equations. In Section 3.2, we briefly present some typical GW results for materials, including quasiparticle renormalizations, lifetimes, and band gap enhancements. In Section 4, the combination of GW and DMFT is summarized. Finally, as a prospective outlook, ab initio dynamical vertex approximation D$\Gamma$A is introduced in Section 5 as a unifying scheme for all that: GW, DMFT and non-local vertex correlations beyond.

Similar Books
The GW method
Quasiparticle calculations in solids
Many-Body Perturbation Theory: The GW Approximation
Correlation effects in solids from first principles
Random-phase approximation and its applications in computational chemistry and materials science
Towards Ab-initio Calculation of Electron Energies in Semiconductor
A mathematical analysis of the GW0 method for computing electronic excited state energies of molecules
Quasiparticle Self-Consistent GW Method for the Spectral Properties of Complex Materials

Home |  Authors | About | Contact Us |  Email 
 Copyright © 2002-2013 FreeScience.info. 

Best viewed with Mozilla 1.X 1024x768
free scientific books