273 citations · 1.6k across the 86 of their papers we have counts for
7 papers · 1 filter
Self-learning Monte-Carlo for non-abelian gauge theory with dynamical fermions
Yuki Nagai, Akinori Tanaka, Akio Tomiya
In this paper, we develop the self-learning Monte-Carlo (SLMC) algorithm for non-abelian gauge theory with dynamical fermions in four dimensions to resolve the autocorrelation prob…
Sparse modeling of large-scale quantum impurity models with low symmetries
Hiroshi Shinaoka, Yuki Nagai
Quantum embedding theories provide a feasible route for obtaining quantitative descriptions of correlated materials. However, a critical challenge is solving an effective impurity…
Effective Ruderman-Kittel-Kasuya-Yosida-like interaction in diluted double-exchange model: self-learning Monte Carlo approach
Hidehiko Kohshiro, Yuki Nagai
We study the site-diluted double exchange (DE) model and its effective Ruderman-Kittel-Kasuya-Yosida-like interactions, where localized spins are randomly distributed, with the use…
Sparse modeling approach to obtaining the shear viscosity from smeared correlation functions
Etsuko Itou, Yuki Nagai
We propose the sparse modeling method to estimate the spectral function from the smeared correlation functions. We give a description of how to obtain the shear viscosity from the…
Spectrum collapse of disordered Dirac Landau levels as topological non-Hermitian physics
Taiki Matsushita, Yuki Nagai, Satoshi Fujimoto
We investigate disorder effects on Landau levels in Dirac electron systems with the use of a non-Hermitian quasiparticle Hamiltonian formalism. This formalism reveals that spin-dep…
First- and Second-Order Topological Superconductivity and Temperature-Driven Topological Phase Transitions in the Extended Hubbard Model with Spin-Orbit Coupling
Majid Kheirkhah, Zhongbo Yan, Yuki Nagai +1
The combination of spin-orbit coupling with interactions results in many exotic phases of matter. In this Letter, we investigate the superconducting pairing instability of the two-…