Quantum physics sets a speed limit to electronics

https://phys.org/news/2022-03-quantum-physics-limit-electronics.html

"These are hit by an ultra-short laser pulse with a wavelength in the extreme UV range. This laser pulse shifts the electrons into a higher energy level, so that they can suddenly move freely. That way, the laser pulse turns the material into an electrical conductor for a short period of time... freely moving charge carriers in the material, they can be moved in a certain direction by a second, slightly longer laser pulse... electric current that can then be detected with electrodes on both sides of the material"

Related: Quantum Chip Brings 9,000 Years of Compute Down to Microseconds

https://www.tomshardware.com/news/quantum-chip-brings-9000-years-of-compute-down-to-microseconds