3 ms·
There is no other way to do this, in this case they're maintaining information about the quantum properties of the beam (entanglement, etc.), which get destroye
by psionski 13y ago
There is no other way to do this, in this case they're maintaining information about the quantum properties of the beam (entanglement, etc.), which get destroyed if you convert it to electricity. When talking about quantum cryptography or, in general, quantum computing (as in "computations that are performed using the fundamental quantum interactions between particles"), the particular photons are indeed very important :)
- alanctgardner2 13y agoJust to clarify (I'm pretty sure, but you seem knowledgeable), the quantum state is maintained when photons are absorbed/re-emitted by matter, right? Otherwise it seems like there would be a lot more vacuums involved. That was what I meant by 'the particular photons'; to my mind if you transmit your energy to an electron and are re-emitted you become a 'different' photon. It's a pretty silly point to argue about, though.