Robert D. Mawhinney
Columbia University
 

Quantum Chromodynamics, the part of the standard model which
describes the strong interactions, poses an ideal problem for
numerical simulations.  It is highly non-linear, depends on few
free parameters, runs efficiently on parallel computers and its
predictions are vital to understanding physical phenomena from
the quark-gluon plasma to CP-violation.  Recent theoretical
advances in the formulation of QCD on the lattice, such as
domain-wall fermions, and the development of Teraflops scale
computers, such as QCDSP, have allowed the study of QCD
phenomena previously distorted by the very discretization
underlying the simulations.  Numerical results probing the
foundations of the domain wall approach will be discussed,
along with its application to problems relating to the
quark-gluon plasma and CP-violation in the standard model.
Finally, the QCD-On-a-Chip (QCDOC) computer, a 10 Teraflops
scale computer under development at Columbia, will be
introduced as the next step toward precise results from QCD.