Path-integral renormalization group method with quantum-number projection

Takahiro Mizusaki*, Masatoshi Imada

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We present a quantum-number projection technique and its implementation to the recently proposed path-integral renormalization group (PIRG) method, which has been quite a powerful tool in investigating strongly correlated electron systems. By this extension, the PIRG can handle excited states with different quantum numbers in addition to the ground state and precision of solution is highly improved. By taking Hubbard models as an example, we demonstrate its feasibility.

Original languageEnglish
Pages (from-to)408-411
Number of pages4
JournalComputer Physics Communications
Issue number1-3
Publication statusPublished - 2005 Jul 1
Externally publishedYes
EventProceedings of the Europhysics Conference on Computational Physics 2004 CCP 2004 -
Duration: 2004 Sept 12004 Sept 4


  • Hubbard model
  • PIRG
  • Quantum number projection

ASJC Scopus subject areas

  • Hardware and Architecture
  • Physics and Astronomy(all)


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