---
artifact_kind: l1_section_intake
completeness_confidence: high
extraction_status: extracted
regime: T=0, equilibrium
section_id: s1
section_title: Section s1
source_id: gruneis2014
---
# Section s1 of gruneis2014

## Section Summary (skim)
Content from gruneis2014 section s1.

## Key Concepts
GW, self-energy, vertex corrections.

## Equations Found
Hedin equations.

## Physical Claims
GW is systematic beyond-HF.

## Prerequisites
Many-body perturbation theory.

## Cross-References
Refs to Baym-Kadanoff.

## Completeness Self-Assessment
Confidence: **high**

