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Releases: issp-center-dev/ChiQ

v1.0-beta

03 Apr 03:53
@yomichi yomichi
v1.0-beta
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What is ChiQ?

This package solves the Bethe-Salpeter equation (BSE) in the dynamical mean-field theory (DMFT) and calculates the momentum-dependent static and dynamical susceptibilities $\chi(q,\nu_m)$ in correlated electron systems.
Necessary input to this package can be generated using DCore. Combined with DCore, this package offers investigations of two-particle responses in models and materials.

Features:

  • Computes the momentum-dependent spin/charge/orbital susceptibility $\chi_{ijkl}(\boldsymbol{q}, i\nu_m)$ in Matsubara-frequency domain (see algorightm in doc for the explicit definition).

  • Provides several approximation schemes, including BSE, SCL, RPA, and RRPA (see algorithms in doc for details).

  • Runs as a post-processing step of DCore.

    • Allows input from DFT packages via tight-binding bands in the Wannier90 format.

    • Supports the inclusion of spin-orbit coupling (SOC).

For more information...

For details, please see the README.md and the online manual.

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