5MHz clock speed
Pffft, overclocked a good ol' Z80 to about 5MHz once - and at that speed it would do different things if you so much as looked at it.
Didn't realise at the time, it must have been going all Quantum !
German and American boffins have claimed a speed record for a quantum CNOT gate: 200 nanosecond operation, which would equate to 5 MHz clock speeds. Just as important, the researchers created the quantum CNOT* gate in silicon, in the form of electron spins controlled by microwave pulses. As this announcement from the …
A voltage on a MOS gate creates current flow (or not) that can generate a voltage on the gate it's connected to.
But this thing seems to be more in Electron Spin Resonance territory, so you need an RF receiver to detect the output of the "gates"
On the upside if you can put both electrons on the same atom you've beaten the (apparently) absolute "1 atom wide linewidth" for Silicon without needing 1 atom wide lithography.
So potentially very clever (especially at near room temperature, often an Achilles heel of this tech).
Tensor maths is looking to be a key enabler to understanding the complete theory of various materials and quantum situations.
It's the "scale invariance" features that are quite impressive.
There is a tensor maths text book on the NASA website.