170 citations · 2.1k across the 78 of their papers we have counts for
9 papers · 1 filter
Strong-coupling formula for momentum-dependent susceptibilities in dynamical mean-field theory
Junya Otsuki, Kazuyoshi Yoshimi, Hiroshi Shinaoka +1
Computing momentum-dependent susceptibilities in the dynamical mean-field theory (DMFT) requires solving the Bethe-Salpeter equation, which demands large computational cost. Exploi…
Updated Core Libraries of the ALPS Project
Markus Wallerberger, Sergei Iskakov, Alexander Gaenko +13
The open source ALPS (Algorithms and Libraries for Physics Simulations) project provides a collection of physics libraries and applications, with a focus on simulations of lattice…
First-principles studies of spin-orbital physics in pyrochlore oxides
Hiroshi Shinaoka, Yukitoshi Motome, Takashi Miyake +2
The pyrochlore oxides O exhibit a complex interplay between geometrical frustration, electronic correlations, and spin-orbit coupling, due to the lattice structure and…
On the limitations of cRPA downfolding
Carsten Honerkamp, Hiroshi Shinaoka, Fakher F. Assaad +1
We check the accuracy of the constrained random phase approximation (cRPA) downfolding scheme by considering one-dimensional two- and three-orbital Hubbard models with a target ban…
Efficient implementation of the continuous-time interaction-expansion quantum Monte Carlo method
Hiroshi Shinaoka, Yusuke Nomura, Emanuel Gull
We describe an open-source implementation of the continuous-time interaction-expansion quantum Monte Carlo method for cluster-type impurity models with onsite Coulomb interactions…
irbasis: Open-source database and software for intermediate-representation basis functions of imaginary-time Green's function
Naoya Chikano, Kazuyoshi Yoshimi, Junya Otsuki +1
The open-source library, irbasis, provides easy-to-use tools for two sets of orthogonal functions named intermediate representation (IR). The IR basis enables a compact representat…
Smooth self-energy in the exact-diagonalization-based dynamical mean-field theory: Intermediate-representation filtering approach
Yuki Nagai, Hiroshi Shinaoka
We propose a method for estimating smooth real-frequency self-energy in the dynamical mean-field theory with the finite-temperature exact diagonalization (DMFT-ED). One of the bene…
Performance analysis of a physically constructed orthogonal representation of imaginary-time Green's function
Naoya Chikano, Junya Otsuki, Hiroshi Shinaoka
The imaginary-time Green's function is a building block of various numerical methods for correlated electron systems. Recently, it was shown that a model-independent compact orthog…
Overcomplete compact representation of two-particle Green's functions
Hiroshi Shinaoka, Junya Otsuki, Kristjan Haule +4
Two-particle Green's functions and the vertex functions play a critical role in theoretical frameworks for describing strongly correlated electron systems. However, numerical calcu…