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Projective quantum monte carlo method for the anderson impurity model and its application to dynamical mean field theory.

作者信息

Feldbacher M, Held K, Assaad F F

机构信息

Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany.

出版信息

Phys Rev Lett. 2004 Sep 24;93(13):136405. doi: 10.1103/PhysRevLett.93.136405. Epub 2004 Sep 23.

DOI:10.1103/PhysRevLett.93.136405
PMID:15524746
Abstract

We develop a projective quantum Monte Carlo algorithm of the Hirsch-Fye type for obtaining ground state properties of the Anderson impurity model. This method is employed to solve the self-consistency equations of dynamical mean field theory. It is shown that the approach converges rapidly to the ground state so that reliable zero-temperature results are obtained. As a first application, we study the Mott-Hubbard metal-insulator transition of the frustrated one-band Hubbard model, reconfirming the numerical renormalization group results.

摘要

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