Official Resources
- Homepage: https://cqme.org/ (Center for Quantum Materials Engineering)
- Documentation: https://cqme.org/software/
- Source Repository: Available via CQME / GitLab (CI/CD mentioned)
- License: GNU GPL v3.0
Overview
SternheimerGW is a specialized GW code utilizing the Sternheimer linear-response approach to avoid explicit summation over empty states. Developed and maintained by Feliciano Giustino’s group (CQME at UT Austin), it offers an efficient alternative to standard sum-over-states implementations, integral to the EPW and Quantum ESPRESSO ecosystems.
Scientific domain: GW approximation, linear-response methods, electron-phonon coupling
Target user community: Researchers in electron-phonon coupling and efficient GW methodologies
Theoretical Methods
- GW approximation
- Sternheimer linear-response approach
- Density functional perturbation theory (DFPT) techniques
- Avoiding empty state summations
- Advanced GW algorithms
- Research implementations
Capabilities (CRITICAL)
Note: Research code with limited public information.
- GW quasiparticle energies
- Linear-response GW
- Sternheimer equation approach
- Computational efficiency advantages (potential)
- Research calculations
- Method development
Sources: Limited academic publications
Key Characteristics
Sternheimer Approach:
- Linear-response formalism
- Avoids empty state summation
- DFPT-like techniques
- Computational advantages
- Research methodology
Research Code:
- Limited public distribution
- Academic groups
- Specialized implementation
- Method development focus
- Research collaborations
Academic Development:
- Oxford/Imperial groups
- Research publications
- Method papers
- Specialized expertise
Limitations & Known Constraints
- Availability: Very limited public access
- Documentation: Research-level only
- Distribution: Group-specific
- Support: Academic collaborations
- Status: Research implementation
- Community: Very small/specialized
Information Gap
- No public central repository
- Limited documentation available
- Research group specific
- Minimal public presence
- Academic collaboration required
Recommendation
For GW calculations, use well-established codes:
- BerkeleyGW: Comprehensive, well-documented
- Yambo: Production GW/BSE
- WEST: Large-scale GW
- molgw: Molecular systems
- GreenX: Modern library approach
Research Context
Sternheimer Method:
- Linear-response technique
- Alternative to standard GW
- Computational efficiency research
- Method development
- Academic interest
Academic Groups:
- Oxford University
- Imperial College London
- Collaborating institutions
- Research publications
- Method papers
Verification & Sources
Primary sources:
- Academic publications on Sternheimer GW
- Research group communications
- Method development papers
Secondary sources:
- GW approximation literature
- Linear-response methods
- DFPT techniques
Confidence: UNCERTAIN - Research code, very limited public information
Verification status: ⚠️ RESEARCH CODE
- Status: RESEARCH IMPLEMENTATION - Limited public availability
- No central public repository found
- Academic group specific
- Recommendation: For production GW work, use established codes (BerkeleyGW, Yambo, WEST, molgw, GreenX) with comprehensive documentation and active communities