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SEET Impurity Solver

SEET Impurity Solver

Self-Energy Embedding Theory (SEET) runs through green-mbpt’s embedding.exe together with an exact-diagonalization impurity solver provided by green-seet-solvers.

For Green 1.0.0-alpha (v1.0.0a0) and later, embedding.exe is built as part of the standard General Installation — no separate branch or build is required for the framework itself. Unless you supply your own impurity solver, you will need the Green exact-diagonalization impurity solver, which you will need to build in addition, as described below. See the SEET example for how to run a calculation once everything is installed.

Prerequisites

System libraries:

  1. MPI
  2. HDF5
  3. BLAS
  4. CMake (version >= 3.27)
  5. C++17 compatible compiler

Third-party libraries:

  1. Eigen3
  2. Boost

Build the exact-diagonalization impurity solver

Clone green-seet-solvers — the exact-diagonalization solver for the SEET impurity problem — and build it:

git clone https://github.com/Green-Phys/green-seet-solvers
cmake -S green-seet-solvers -B build \
   --install-prefix `pwd`/install/seet_solvers \
   -DCMAKE_BUILD_TYPE=Release
cmake --build build -j 32
cmake --build build -t install
rm -rf build

Legacy: Green v0.3.2

On Green v0.3.2, embedding.exe is not part of the default green-mbpt build. To obtain the SEET framework on that release, build green-mbpt from the SEET branch as shown below. The exact-diagonalization impurity solver above is still required.
git clone https://github.com/Green-Phys/green-mbpt
cd green-mbpt
git checkout SEET
cd ..
cmake -S green-mbpt -B build \
   --install-prefix `pwd`/install/green-mbpt \
   -DCMAKE_BUILD_TYPE=Release
cmake --build build -j 32
cmake --build build -t test install
rm -rf build

Installation issues

If you encounter issues with compiling, installing, or testing the package, please file an issue on our GitHub issues page, and we will do our best to help.

Analytical Continuation