A The most striking example of vacuum fluctuations affecting experiments

[hyksos]

TL;DR

What do you think is the most striking example of vacuum fluctuations affecting the results of an experiment?

This is a question for experimentalists working in Condensed Matter Physics. What do you think is the most striking example of QFT vacuum state fluctuations affecting the results of an experiment?

I have vague memory of reviewing some abstracts about quantum criticality in cuprate superconductors. The results were differing from classical predictions in ways explained by electron interactions with the vacuum. But I have since lost all my links to them. Would be happy to see what you have.

 

[Keith_McClary]

This might be controversial:
Explore The Vacuum Fluctuation Myth in Quantum Theory
(From PF Insights.)

 

[hyksos]

Yeah that's fine and all. I'm looking for some examples of how the vacuum state plays a role in quantum criticality. I remember reading publications about cuprate superconductors from peer-reviewed journals. I just have lost all of my notes and bookmarks in the hustle-bustle of life over the years. I was just wondering if anyone on the forum has any of those kinds of experiments "at their fingertips".