Path‐integral renormalization‐group (PIRG) method is a rapidly developing tool for computing ground state properties of interacting quantum systems on lattices, particularly models for strongly correlated electrons such as the Hubbard model. It has served in clarifying phase diagrams of the Hubbard model containing quantum spin liquid phase. PIRG has also been implemented as a low‐energy solver of the effective Hamiltonian for realistic systems. This makes it possible to construct a scheme of first‐principles calculation by the hybrid approach combined with the density functional theory.

Topics
Density functional theory, First-principle calculations, Correlated electrons, Many electron systems, Phase transitions, Quantum fluids, Quantum mechanical systems and processes, Renormalization and regularization
This content is only available via PDF.
© 2006 American Institute of Physics.
2006
American Institute of Physics
You do not currently have access to this content.