Analytic Continuation – Prony method
The Prony Analytic Continuation method, also called the Minimal Pole Method, is described in detail in the following papers:
https://doi.org/10.1103/PhysRevB.110.035154 (scalar-valued version)
https://doi.org/10.1103/PhysRevB.110.235131 (matrix-valued version)
Green provides a pedagogical implementation of the method as it was submitted to the journal. The implementation is generic; follow the instructions in the README to get started. A more elaborate version that seamlessly integrates with the GREEN code will be presented at a later time.
To get started, head to the repositories at:
https://github.com/Green-Phys/PronyAC (scalar-valued version, deprecated as it is a special case of MiniPole)
https://github.com/Green-Phys/MiniPole (matrix-valued version)
Then follow the instructions in the README. File issues and ask Lei Zhang, Sergei Iskakov or Emanuel Gull.