The neutron lifetime with near-Exascale computing.


The fundamental particle theory called Quantum Chromodynamics (QCD) dictates everything about protons and neutrons, from their intrinsic properties to interactions that bind them into atomic nuclei. Quantities that cannot be fully resolved through experiment, such as the neutron lifetime (whose precise value is important for the existence of light-atomic elements that make the sun shine and life possible), may be understood through numerical solutions to QCD. We directly solve QCD using Lattice Gauge Theory and calculate nuclear observables such as neutron lifetime. We have developed an improved algorithm that exponentially decreases the time-to-solution and applied it on the new CORAL supercomputers, Sierra and Summit. We use several optimization yielding 15% of peak performance when deployed across large fractions of CORAL.

Jan 7, 2019 11:00 AM — 12:00 PM
Invited seminar
Computational Science Initiative, Brookhaven National Laboratory
Enrico Rinaldi
Enrico Rinaldi
Research Scientist

My research interests include artificial intelligence and quantum computing applied to particle physics and quantum many-body systems.