Alternatives to the stochastic "noise vector" approach

Abstract

Several important observables, like the quark condensate and the Taylor coefficients of the expansion of the QCD pressure with respect to the chemical potential, are based on the trace of the inverse Dirac operator and of its powers. Such traces are traditionally estimated with "noise vectors" sandwiching the operator. We explore alternative approaches based on polynomial approximations of the inverse Dirac operator.

Eight pages, thirteen figures. Proceedings of the 35th International Symposium on Lattice Field Theory

References in corpus (2)

• Chiral symmetry breaking and the Banks--Casher relation in lattice QCD with Wilson quarks
• Divergences in the quark number susceptibility : The origin and a cure

Cited by in corpus (1)

• Correlated Dirac Eigenvalues and Axial Anomaly in Chiral Symmetric QCD