no code implementations • 2 Dec 2020 • Marcin Raczkowski, Fakher F. Assaad, Masatoshi Imada
Using a cluster extension of the dynamical mean-field theory (CDMFT) we map out the magnetic phase diagram of the anisotropic square lattice Hubbard model with nearest-neighbor intrachain $t$ and interchain $t_{\perp}$ hopping amplitudes at half-filling.
Strongly Correlated Electrons
no code implementations • 28 May 2020 • Yusuke Nomura, Masatoshi Imada
Pursuing fractionalized particles that do not bear properties of conventional measurable objects, exemplified by bare particles in the vacuum such as electrons and elementary excitations such as magnons, is a challenge in physics.
Strongly Correlated Electrons Disordered Systems and Neural Networks Statistical Mechanics Superconductivity Quantum Physics
no code implementations • 26 Feb 2018 • Giuseppe Carleo, Yusuke Nomura, Masatoshi Imada
It is based on the deep Boltzmann machine architecture, in which two layers of hidden neurons mediate quantum correlations among physical degrees of freedom in the visible layer.
Disordered Systems and Neural Networks Statistical Mechanics Strongly Correlated Electrons Computational Physics Quantum Physics
2 code implementations • 30 Nov 2017 • Takahiro Misawa, Satoshi Morita, Kazuyoshi Yoshimi, Mitsuaki Kawamura, Yuichi Motoyama, Kota Ido, Takahiro Ohgoe, Masatoshi Imada, Takeo Kato
mVMC (many-variable Variational Monte Carlo) is an open-source software based on the variational Monte Carlo method applicable for a wide range of Hamiltonians for interacting fermion systems.
Strongly Correlated Electrons Superconductivity Computational Physics
no code implementations • 28 Oct 2014 • Satoshi Morita, Ryui Kaneko, Masatoshi Imada
Our results, however, do not fully exclude the possibility of a direct quantum transition between the staggered AF and VBC phases with a wide critical region and deconfined criticality.
Strongly Correlated Electrons
no code implementations • 1 Jul 2014 • Ryui Kaneko, Satoshi Morita, Masatoshi Imada
We numerically study the Heisenberg models on triangular lattices by extending it from the simplest equilateral lattice with only the nearest-neighbor exchange interaction.
Strongly Correlated Electrons
no code implementations • 25 Mar 2013 • Ryui Kaneko, Satoshi Morita, Masatoshi Imada
We revisit the accuracy of the variational Monte Carlo (VMC) method by taking an example of ground state properties for the one-dimensional Hubbard model.
Strongly Correlated Electrons
no code implementations • 14 Apr 2010 • Ryui Kaneko, Takahiro Misawa, Masatoshi Imada
Motivated by a recent experiment on volborthite, a typical spin-$1/2$ antiferromagnet with a kagom\'{e} lattice structure, we study the magnetization process of a classical Heisenberg model on a spatially distorted kagom\'{e} lattice using the Monte Carlo (MC) method.
Strongly Correlated Electrons
