Path-integral renormalization group method with quantum-number projection

Takahiro Mizusaki; Masatoshi Imada

doi:10.1016/j.cpc.2005.03.090

Path-integral renormalization group method with quantum-number projection

Takahiro Mizusaki^*, Masatoshi Imada

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

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 language	English
Pages (from-to)	408-411
Number of pages	4
Journal	Computer Physics Communications
Volume	169
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cpc.2005.03.090
Publication status	Published - 2005 Jul 1
Externally published	Yes
Event	Proceedings of the Europhysics Conference on Computational Physics 2004 CCP 2004 - Duration: 2004 Sept 1 → 2004 Sept 4

Keywords

Hubbard model
PIRG
Quantum number projection

ASJC Scopus subject areas

Hardware and Architecture
Physics and Astronomy(all)

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10.1016/j.cpc.2005.03.090

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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",

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doi = "10.1016/j.cpc.2005.03.090",

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journal = "Computer Physics Communications",

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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

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U2 - 10.1016/j.cpc.2005.03.090

DO - 10.1016/j.cpc.2005.03.090

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JO - Computer Physics Communications

JF - Computer Physics Communications

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T2 - Proceedings of the Europhysics Conference on Computational Physics 2004 CCP 2004

Y2 - 1 September 2004 through 4 September 2004

ER -

Path-integral renormalization group method with quantum-number projection

Abstract

Keywords

ASJC Scopus subject areas

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