So having perfected their mirror moving technique, all Wilson and co have to do is cool everything down, then sit back and look for photons. Sure enough, they've spotted microwave photons emerging from the moving mirror, just as predicted.
I wonder what role their expectation played in the results of the experiment. They went looking for photons and found them...

Reminds me of waves and particles being changed by observation.

I love the back-handed way science proves we create our reality.