Electrons are photons, aren't they? I'm guessing you mean computing with light instead of voltage, but even then, aren't a lot of the same restrictions there, clock fanout and speed (6ghz or whatever)?
electrons pop into higher energy orbitals when they absorb a photon, but electrons’ energy is represented as a voltage, while a photons energy is expressed as its frequency.
im no photonics engineer but iirc the attractive part is, you’re not dealing with charged particles anymore, so you can go even smaller with your “transistors” without getting interference.
im no photonics engineer but iirc the attractive part is, you’re not dealing with charged particles anymore, so you can go even smaller with your “transistors” without getting interference.