We present an application of the so-called determinantal method for the Monte Carlo simulation of fermionic systems, for the case of the two-dimensional three band Hubbard model. Our analysis of the conjugate gradient procedure shows that a proper treatment of the linear system of equations is necessary in order to avoid introducing asymmetries which are responsible for numerical instabilities in the algorithm.

Monte-carlo Simulations In Fermionic Systems - the 3 Band Hubbard-model Case

MARINI BETTOLO MARCONI, Umberto;
1991

Abstract

We present an application of the so-called determinantal method for the Monte Carlo simulation of fermionic systems, for the case of the two-dimensional three band Hubbard model. Our analysis of the conjugate gradient procedure shows that a proper treatment of the linear system of equations is necessary in order to avoid introducing asymmetries which are responsible for numerical instabilities in the algorithm.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11581/241979
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