Microscopic Limit
Because engineering a physical component to the size of a Planck length is impossible (a proton is billions of times larger than the Planck length), “Planck-scale computing hardware” relies on reaching the extreme fundamental limits of particle control: [1, 2]
Subatomic Metrology: Measuring deviations at this scale requires macroscopic instruments operating at extreme precision, similar to Fermilab’s Holometer, which uses laser arms to detect spacetime jitters approaching a Planck length. [1]
Attosecond Space-Time Control: Systems require extreme laser interferometry or localized electron pulses capable of steering and tracking electron motion at its absolute intrinsic space-time speed limit. [1]