The GW approximation
On this website I provide links to key publications concerning the
application of the GW approximation and beyond to the interacting
homogeneous electron gas and simple metals.
The first link is a postscriptfile containing a talk I gave in the Electronic
Structure Discussion Group at the 21st of November 2001. It discusses some
basic tools of manybody theory, the Hedin equations, the GW approximation and
its application to the homogeneous electron gas. For any questions or
suggestions please email me.
Talks
Papers
On the original G_{0}W_{0} (noninteracting
Green function and dynamically screened interaction in RPA)

L. Hedin, New Method for Calculating the OneParticle Green's Function with
Application to the ElectronGas Problem,
Phys. Rev. 139, A796A823 (1965)
 B. Lundqvist, SingleParticle Spectrum of the Degenerate Electron Gas:
I. The Structure of the Spectral Weight Function Physik der kondens.
Materie, 6, 193 (1967)
 B. Lundqvist, SingleParticle Spectrum of the Degenerate Electron Gas:
II. Numerical Results for Electrons Coupled to Plasmons,
Physik der kondens Materie, 6, 206 (1967)
 B. Lundqvist, SingleParticle Spectrum of the degenerate Elecron Gas:
III. Numerical Results in the Random Phase Approximation,
Physik der kondens Materie, 7, 117 (1968)
 L. Hedin, S.Lundqvist , Effects of ElectronElectron and
ElectronPhonon Interactions on the OneElectron States of Solids, Solid
State Physics, Volume 23, Academic Press, New York, San Francisco, London
(1969)
G_{0}W, using local vertex correction beyond RPA in
the dynamical screening
G_{0}WGamma, using local vertex correction beyond RPA in
the dynamical screening and in the selfenergy integral

G.D. Mahan, B.E. Sernelius , Electronelectron interactions and the
bandwidth of metals, Phys. Rev. Lett. 62, 2718 (1989)

H.O. Frota, G.D. Mahan , Band tails and bandwidth in simple metals,
Phys. Rev. B 45, 6243 (1992)

M. Hindgren and C.O. Almbladh, Improved localfield corrections to the
G_{0}W approximation in jellium: Importance of consistency relation,
Phys. Rev. B 56, 12832 (1997)
G_{0}WGamma beyond local vertex corrections
GW, where G and both, G and W, are calculated selfconsistently
Particle conservation and sum rules