Fundamental parameters from future lattice calculations

We describe the impact that future lattice QCD calculations can have on the determination of the parameters of the standard model (quark masses, coupling constant, and particularly the CKM matrix elements) and the search for new physics beyond. We consider the impact of calculations requiring CPU resources ranging from what is possible by the end of 2007 (≈ 10 TFlop-yr with USQCD resources), through 50 TF-Yr and up to 500 TF-Yr. We begin with a brief description of progress in the last 5 years and an overview of what should be possible in the next 5 years, focusing on overconstraining the CKM matrix elements. Subsequent sections detail, respectively, the status and future of calculations of the quark masses, the CPU time required for future ensembles of lattice gauge configurations, and the status and future of calculations of electroweak matrix elements which constrain CKM elements. We end with a summary and outlook.1