463 citations · 3k across the 44 of their papers we have counts for
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Improved Estimators for the Self-Energy and Vertex Function in Hybridization Expansion Continuous-Time Quantum Monte Carlo Simulations
Hartmut Hafermann, Kelly R. Patton, Philipp Werner
We propose efficient measurement procedures for the self-energy and vertex function of the Anderson impurity model within the hybridization expansion continuous-time quantum Monte…
Dual boson approach to collective excitations in correlated fermionic systems
A. N. Rubtsov, M. I. Katsnelson, A. I. Lichtenstein
We develop a general theory of a boson decomposition for both local and non-local interactions in lattice fermion models which allows us to describe fermionic degrees of freedom an…
Orthogonal Polynomial Representation of Imaginary-Time Green's Functions
Lewin Boehnke, Hartmut Hafermann, Michel Ferrero +2
We study the expansion of single-particle and two-particle imaginary-time Matsubara Green's functions of quantum impurity models in the basis of Legendre orthogonal polynomials. We…