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Next-generation EDIpack: A Lanczos-based package for quantum impurity models featuring general broken-symmetry phases, flexible bath topologies and multi-platform interoperability

Published inSciPost physics codebases, p. 1-79; 58
First online date2025-09-24
Abstract

We present a next-generation version of EDIpack, a flexible, high-performance numerical library using Lanczos-based exact diagonalization to solve generic quantum impurity problems, such as those introduced in Dynamical Mean-Field Theory to describe extended strongly correlated materials. This new release efficiently solves impurity problems allowing for different broken-symmetry solutions, including superconductivity, featuring local spin-orbit coupling and/or electron-phonon coupling. It provides quick access to dynamical correlation functions on the entire complex frequency plane at zero and low-temperatures. The modular architecture of the software not only provides Fortran APIs but also includes bindings to C/C++, interfaces with Python and Julia or with TRIQS and w2dynamics research platforms, thus ensuring unprecedented level of inter-operability. The outlook includes further extensions to study quantum materials and cold atoms quantum simulators, as well as quantum information applications.

Funding
  • Austrian Science Fund - [P 36332]
  • Ministero dell'Università e della Ricerca - [PE0000023-NQSTI]
  • Deutsche Forschungsgemeinschaft - CUI: Advanced Imaging of Matter [390715994]
  • European Commission - Strongly Correlated Physics and Materials for Energy Technology [724177]
Citation (ISO format)
CRIPPA, Lorenzo et al. Next-generation EDIpack: A Lanczos-based package for quantum impurity models featuring general broken-symmetry phases, flexible bath topologies and multi-platform interoperability. In: SciPost physics codebases, 2025, p. 1–79. doi: 10.21468/SciPostPhysCodeb.58
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Additional URL for this publicationhttps://scipost.org/10.21468/SciPostPhysCodeb.58
Journal ISSN2949-804X
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Creation11/25/2025 8:49:24 AM
First validation11/26/2025 7:30:46 AM
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