The Casimir effect is widely viewed as a force that originates from what is called vacuum energy. It is often invoked as decisive evidence that the zero poi...
... a force that originates from the vacuum energy, which is a view especially popular in the community of high-energy physicists. Another view, more popular in the condensed-matter community, is that Casimir force has the same physical origin as van der Waals force
So the HEP people have culturally appropriated the Casimir effect from condensed matter, and they wear it when they want to wow the general public.
