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Supercomputers Aid Scientists Studying the Smallest Particles in the Universe

By Oak Ridge National Laboratory

January 29, 2021

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A team of scientists used the Oak Ridge National Laboratory's Summit supercomputer to measure quark interactions in hadrons, and applied the approach to simulations using quarks with close-to-physical masses.

Oak Ridge's Bálint Joó used the Chroma software suite for lattice quantum chromodynamics and NVIDIA's QUDA library to generate snapshots of the strong-force field in a cube of space-time, weighting them to describe what the quarks were doing in the vacuum.

These snapshots were used to simulate what would happen as quarks moved through the strong-force field.

The team used more than 1,000 snapshots over three different quark masses in cubes with lattices ranging from 323 to 643 points in space.

Said Joó, "Algorithmic improvements like multigrid solvers and their implementations in efficient software libraries such as QUDA, combined with hardware that can execute them, have made these kinds of simulations possible."

From Oak Ridge National Laboratory
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