Application of Gauss - Lanczos Algorithm to Determine Low Modes Density of Dirac Operator

Rudina Osmanaj, Dafina Xhako & Niko Hyka
There are numerous applications in physics, especially in Lattice QCD, where is required to bound entries and the trace of the inverse and the determinant of a large sparse matrix. This paper review one of the most popular methods which are used in lattice QCD to compute the determinant of the lattice Dirac operator: Gaussian integral representation. A modified algorithm can be used for other purposes too, for example for the determination of the density...
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