20 citations · 31 across the 4 of their papers we have counts for
5 papers
adapol: Adaptive pole-fitting for quantum many-body physics
Zhen Huang, Chia-Nan Yeh, Lin Lin +3
We describe adapol, a Python package for fitting Matsubara Green's functions, self-energies, and hybridization functions by a compact sum of simple poles with real pole locations a…
Automated evaluation of imaginary time strong coupling diagrams by sum-of-exponentials hybridization fitting
Zhen Huang, Denis Golež, Hugo U. R. Strand +1
We present an efficient separation of variables algorithm for the evaluation of imaginary time Feynman diagrams appearing in the bold pseudo-particle strong coupling expansion of t…
Discrete Lehmann representation of three-point functions
Dominik Kiese, Hugo U. R. Strand, Kun Chen +3
We present a generalization of the discrete Lehmann representation (DLR) to three-point correlation and vertex functions in imaginary time and Matsubara frequency. The representati…
cppdlr: Imaginary time calculations using the discrete Lehmann representation
Jason Kaye, Hugo U. R. Strand, Nils Wentzell
We introduce cppdlr, a C++ library implementing the discrete Lehmann representation (DLR) of functions in imaginary time and Matsubara frequency, such as Green's functions and self…
A fast time domain solver for the equilibrium Dyson equation
Jason Kaye, Hugo U. R. Strand
We consider the numerical solution of the real time equilibrium Dyson equation, which is used in calculations of the dynamical properties of quantum many-body systems. We show that…