H-NESSi uses HODLR compression of Green's functions plus DLR for initial states to reduce Kadanoff-Baym equation propagation from cubic to lower scaling while preserving controllable accuracy.
Spm: Sparse modeling tool for analytic continuation of imaginary-time green’s function.Computer Physics Communications, 244:319–323, November 2019
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H-NESSi: The Hierarchical Non-Equilibrium Systems Simulation package
H-NESSi uses HODLR compression of Green's functions plus DLR for initial states to reduce Kadanoff-Baym equation propagation from cubic to lower scaling while preserving controllable accuracy.