Remarks on strange-quark simulations with Wilson fermions

Abstract

In the simulation of QCD with 2+1 flavors of Wilson fermions, the positivity of the fermion determinant is generally assumed. We present evidence that this assumption is in general not justified and discuss the consequences of this finding.

18 pages, 4 figures

References in corpus (3)

• Simulation of QCD with N_f=2+1 flavors of non-perturbatively improved Wilson fermions
• Accelerating Dynamical Fermion Computations using the Rational Hybrid Monte Carlo (RHMC) Algorithm with Multiple Pseudofermion Fields
• Master-field simulations of O(a)-improved lattice QCD: Algorithms, stability and exactness

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