Welcome to \({\mathcal H}\Phi\)’s tutorial!

About \({\mathcal H}\Phi\)

A numerical solver package for a wide range of quantum lattice models including Hubbard-type itinerant electron hamiltonians, quantum spin models, and Kondo-type hamiltonians for itinerant electrons coupled with quantum spins. The Lanczos algorithm for finding ground states and newly developed Lanczos-based algorithm for finite-temperature properties of these models are implemented for parallel computing. A broad spectrum of users including experimental researchers is cordially welcome.


This package is distributed under GNU General Public License version 3 (GPL v3) or later.

We kindly ask you to cite the article

Mitsuaki Kawamura, Kazuyoshi Yoshimi, Takahiro Misawa, Youhei Yamaji, Synge Todo, and Naoki Kawashima

in publications that include results obtained using this software.