有没有学量子力学的朋友：帮忙翻译一段说明？

proudwind

Lattice gauge theory is a discretization of quantum chromodynamics which is generally accepted to be the fundamental physical theory of strong interactions among the quarks as constituents of matter. The most timeconsuming part of a numerical simulation in lattice gauge theory with Wilson fermions on the lattice is the computation of quark propagators within a chromodynamic background gauge field. These  computations use up a major part of the world's high performance computing power.

As a student of physics, I'd like to make friends with you, though I can't translate the following passage.