Researchers simulate gluon string breaking using trapped ion quantum computer

Researchers in the United States have modelled the particle physics process of string breaking on a trapped ion quantum computer, Physics World reported. String breaking describes a phenomenon within quantum chromodynamics, which is the gauge theory describing the strong interaction that binds quarks together inside hadrons such as protons and neutrons. [1][3]

The strong force differs from gravity, electromagnetism, and the weak interaction because its effect grows stronger as particles are pulled apart rather than diminishing with distance. Gluons are vector bosons with spin 1 that carry color and anticolor charges, allowing them to self-interact. This non-Abelian property causes color confinement, which prevents free quarks or gluons from existing in isolation outside of environments like a quark-gluon plasma. [1][3]

Physics World reported that the results from the trapped ion simulator align with previous findings obtained independently using neutral atom quantum simulators and superconducting quantum computers. The agreement across these different quantum computing platforms indicates that traditional theoretical models of string breaking need to be modified slightly. [1]