Qubits? Any experimental protocol?

I am surprised by the content of the current literature about "qubits" and quantic computers: essentially, they dream and sing the singing tomorrows (or the brightest future). But what about the experimental protocols? The only one I could find is at https://arxiv.org/pdf/1804.03413.pdf

So in the actual state of the fog, I must provisionally conclude that it is only a continuation on the deception. The tribal habits of thinking the QM have departed from the laws of physics. The superposition principle is valid for the amplitudes of admittances. However, when you prepare a map of these admittances, you remain unable to predict when a photon will be transferred from which emitter to which absorber. Or an electron, or so on. No one atom waits fourteen milliards of years to know in which direction is its recoil, in the balance of the emitted photon: the myth of the "collapse of the wave packet". In the emitter frame, it is here and now a quantum h is gone, it is here and now a momentum is gone. A similar statement for the absorber: In the absorber frame, it is here and now a quantum h arrives, it is here and now a momentum is received.

Has someone better lights than myself? Thank you in advance!