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;
1991-01-01
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.File in questo prodotto:
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