[jekude]

What would physical EML gates be implemented in reality?

Posts like these are the reason i check HN every day

[KK7NIL]

Both BJTs and FETs have intrinsic exponential/logarithmic behaviors (at low biases) due to charge density being given by the Fermi-Dirac distribution since electrons are fermions.

[DoctorOetker]

probably with op-amps