Is there a time where the Universe didn’t have the same quantum fields in it, or perhaps no quantum fields at all? That’s what Patreon supporter Chris Shaw wants to know, asking:“When did the first quantum fields form in the universe? But inside those plates, only a subset of those quantum fields are allowed, as there are boundary conditions that prevent certain electromagnetic waves — and hence, certain excitations of the quantum fields — from existing. Derek LeinweberOne of the concepts that physicists wonder about is whether the quantum fields we know about — the ones that are a part of the Standard Model plus whatever the (assumed) quantum fields associated with gravity are — make up all of the quantum fields permeating empty space, or whether there are others. They may or may not be the same quantum fields that exist today, and there may have been additional quantum fields over and above the ones we know of and have today, but they had to exist.

Source: Forbes October 09, 2020 06:00 UTC