Path-integral renormalization group method with quantum-number projection

Takahiro Mizusaki, Masatoshi Imada

Research output: Contribution to journalConference article

Abstract

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
Volume169
Issue number1-3
DOIs
Publication statusPublished - 2005 Jul 1
Externally publishedYes
EventProceedings of the Europhysics Conference on Computational Physics 2004 CCP 2004 -
Duration: 2004 Sep 12004 Sep 4

Fingerprint

Hubbard model
renormalization group methods
Excited states
Ground state
quantum numbers
projection
Electrons
ground state
excitation
electrons

Keywords

  • Hubbard model
  • PIRG
  • Quantum number projection

ASJC Scopus subject areas

  • Computer Science Applications
  • Physics and Astronomy(all)

Cite this

Path-integral renormalization group method with quantum-number projection. / Mizusaki, Takahiro; Imada, Masatoshi.

In: Computer Physics Communications, Vol. 169, No. 1-3, 01.07.2005, p. 408-411.

Research output: Contribution to journalConference article

Mizusaki, Takahiro ; Imada, Masatoshi. / Path-integral renormalization group method with quantum-number projection. In: Computer Physics Communications. 2005 ; Vol. 169, No. 1-3. pp. 408-411.
@article{665fdf1a1c8e4139acaada22c4b1253d,
title = "Path-integral renormalization group method with quantum-number projection",
abstract = "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.",
keywords = "Hubbard model, PIRG, Quantum number projection",
author = "Takahiro Mizusaki and Masatoshi Imada",
year = "2005",
month = "7",
day = "1",
doi = "10.1016/j.cpc.2005.03.090",
language = "English",
volume = "169",
pages = "408--411",
journal = "Computer Physics Communications",
issn = "0010-4655",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Path-integral renormalization group method with quantum-number projection

AU - Mizusaki, Takahiro

AU - Imada, Masatoshi

PY - 2005/7/1

Y1 - 2005/7/1

N2 - 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.

AB - 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.

KW - Hubbard model

KW - PIRG

KW - Quantum number projection

UR - http://www.scopus.com/inward/record.url?scp=21244474765&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=21244474765&partnerID=8YFLogxK

U2 - 10.1016/j.cpc.2005.03.090

DO - 10.1016/j.cpc.2005.03.090

M3 - Conference article

AN - SCOPUS:21244474765

VL - 169

SP - 408

EP - 411

JO - Computer Physics Communications

JF - Computer Physics Communications

SN - 0010-4655

IS - 1-3

ER -