----Original Message----- From: [email protected] > Notice that they are getting microwaves, but the device is fed at GHz frequencies, so how do we know that what they are detecting isn't just leakage (or a harmonic) of what they put in?
Somewhere in the paper they state that the photon multiplication rate is several thousand to one. IOW the pump the material at something like 11 GHz and see a much larger number of photons at something like 9 GHz. Curiously it is not a harmonic, per se. However it is a QM effect and may not scale up - and it requires a superconductor. Jones

