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Simulating Quarks
March/April 2004 (vol. 6 no. 2)
pp. 80-85
Michael Creutz, Brookhaven National Laboratory

Over the past 25 years, the theoretical-particle physicists who practice lattice-gauge theory have become some of the most frequent users of supercomputing cycles-despite much of the community historically regarding the use of computation as somehow intellectually inferior to pure thought. Lattice-gauge theory provides a controlled scheme for studying strong interactions at low energies. In this article, we'll see that the main tools are powerful but demanding algorithms (such as conjugate-gradient sparse-matrix inversions) familiar in other fields. Still-unsolved issues involve the "sign" problem and the basic formulation of parity violation on the lattice. Although we certainly need additional computing capability, we also need new ideas.

Index Terms:
quarks, lattice gauge theory, theoretical physics
Michael Creutz, "Simulating Quarks," Computing in Science and Engineering, vol. 6, no. 2, pp. 80-85, March-April 2004, doi:10.1109/MCISE.2004.1267613
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