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ALPSCore/CT-HYB

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An open-source impurity solver based on the quantum Monte Carlo method. Thermal equilibrium states of interacting impurity systems, such as the impurity Anderson model, can be evaluated by the continuous-time hybridization-expansion quantum Monte Carlo method. It can be used as a solver of effective impurity models derived from the dynamical mean-field theory (DMFT) and can deal with multi-orbital models. This package supports parallel computation by MPI and is developed based on the ALPSCore library.

Information
Last Update:2021/03/05

Official site

https://github.com/ALPSCore/CT-HYB

License

The GNU General Public License (GPL), Version 2
Availability Necessary to compile on Unix/Linux OS.
Core Developers Hiroshi Shinaoka (Saitama University) Emanuel Gull (University of Michigan) Philipp Werner (University of Fribourg)
Target substance/model
  • Impurity model (Impurity Anderson model, etc.)
  • Effective impurity model derived from the dynamical mean-field model
Physical quantities that can be computed Average of local observables, one- and two-body correlation functions for local observables, energy, specific heat, etc.
Methodology Hybridization expansion quantum Monte Carlo method
Parallelization This package Supports MPI parallel computation.
Related App
Related keywords
Document Hiroshi Shinaoka, Emanuel Gull, Philipp Werner, "Continuous-time hybridization expansion quantum impurity solver for multi-orbital systems with complex hybridizations" https://arxiv.org/abs/1609.09559 Computer Physics Communications 215, 128–136 (2017).
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