Post-$GW$ theory and its application to pseudogap in strongly correlated
system
Post-$GW$ theory and its application to pseudogap in strongly correlated
system
The $GW$ approximation is a widely used framework for studying correlated materials, but it struggles with certain limitations, such as its inability to explain pseudogap phenomena. To overcome these problems, we propose a systematic theoretical framework for Green's function corrections and apply it specifically to the $GW$ approximation. In this …