Official Resources
- Homepage: https://github.com/rutgersphysics/COMSUITE
- Documentation: https://github.com/rutgersphysics/COMSUITE/blob/master/README.md
- Source Repository: https://github.com/rutgersphysics/COMSUITE
- License: See repository copyright notice
Overview
COMSUITE (Combination Suite) is a computational materials physics code for simulating correlated quantum materials using Dynamic Mean Field Theory (DMFT) and its extensions. It provides an integrated framework for DFT+DMFT calculations with sophisticated impurity solvers and multiple methodological approaches including DMFT, cluster DMFT, and Gutzwiller approximations.
Scientific domain: Strongly correlated materials, DFT+DMFT, many-body physics
Target user community: Researchers performing advanced DMFT calculations on correlated materials
Theoretical Methods
- DMFT (single-site and cluster)
- DFT+DMFT with charge self-consistency
- Gutzwiller approximation (rotationally invariant slave boson)
- Continuous-time quantum Monte Carlo solvers
- LDA+DMFT, GGA+DMFT
- GW+DMFT extensions
- Dual fermion approaches
Capabilities (CRITICAL)
- Comprehensive DFT+DMFT framework
- Multiple DMFT methodologies
- Charge self-consistent calculations
- Cluster DMFT calculations
- Gutzwiller variational approach (ComRISB)
- Advanced impurity solvers integration
- Realistic materials calculations
- Spectral function calculations
- Integration with DFT codes
- Wannier function downfolding
Sources: Official COMSUITE repository (https://github.com/rutgersphysics/COMSUITE), confirmed in 6/7 source lists
Inputs & Outputs
Input formats:
- DFT outputs
- Wannier90 projections
- Configuration files
- Interaction parameters
Output data types:
- Self-energies
- Green's functions
- Spectral functions
- Observables
- Convergence data
Interfaces & Ecosystem
- Part of Comscope suite: Related to ComDMFT, ComCTQMC, ComRISB
- DFT integration: Multiple DFT code support
- Impurity solvers: CTQMC and other solvers
- Rutgers Physics: Developed by Rutgers research group
Limitations & Known Constraints
- Complex installation and setup
- Requires deep DMFT expertise
- Documentation limited
- Computational cost high for advanced calculations
- Platform: Linux/Unix
- Active development status varies
Performance Characteristics
- Solvers: Efficient CTQMC and RISB solvers
- Parallelization: MPI support for large-scale calculations
- Gutzwiller: ComRISB provides fast, low-cost approximate solutions
- ComLowH: optimized downfolding to low-energy Hamiltonians
Comparison with Other Codes
- vs TRIQS: COMSUITE is a specialized package for LDA+DMFT calculations with predefined workflows, whereas TRIQS is a general library for building DMFT tools
- vs EDMFTF: Both provide DMFT capabilities, but COMSUITE emphasizes the RISB (Gutzwiller) approach alongside DMFT
- vs DFT+DMFT: COMSUITE offers a complete suite including Wannier construction and multiple solvers
- Unique strength: Integrated Gutzwiller (RISB) and DMFT with charge self-consistency
Best Practices
- Workflow: Use ComWann for basis construction, then ComRISB/ComCTQMC for solving
- Solver Selection: Use RISB for quick estimates or wider bandwidths, CTQMC for exact results
- Self-consistency: Ensure charge self-consistency for strongly correlated oxides
Verification & Sources
Primary sources:
- GitHub repository: https://github.com/rutgersphysics/COMSUITE
- Related Comscope packages and documentation
- Rutgers University research group
Secondary sources:
- Published papers using COMSUITE
- Rutgers DMFT research
- Confirmed in 6/7 source lists (claude, g, gr, k, m, q)
Confidence: VERIFIED - Appears in 6 of 7 independent source lists
Verification status: ✅ VERIFIED
- Official repository: ACCESSIBLE (GitHub)
- Documentation: LIMITED (README)
- Source code: OPEN
- Development: Rutgers Physics group
- Comprehensive DMFT suite
- Part of Comscope project