2 ms·
Don't knock sending around gigantic one-time pads on SSDs until you try it :) In all seriousness, QKD also has huge SNR problems over long range. QKD is reall
by pclmulqdq 2y ago
Don't knock sending around gigantic one-time pads on SSDs until you try it :)
In all seriousness, QKD also has huge SNR problems over long range. QKD is really a layer 1 protocol that needs you to entangle qubits far away from each other, and that relies on having a very clean physical layer. You can sort of do it over short-range fiber right now with a known-to-be-direct connection, but any other medium is still off the table. Once you have done the QKD layer 1, put any protocol you want on top of it.