3 ms·
> fire data in weak pulses of light, each just a little bigger than a single photon. so the stream can't be split because the bits are so small?
by woodrowbarlow 8y ago
> fire data in weak pulses of light, each just a little bigger than a single photon.
so the stream can't be split because the bits are so small?
- nneonneo 8y agoTechnically speaking when you turn a laser's power down far enough, you start adjusting the probability that the laser will emit a photon. Many pulses will generate zero photons, some will generate one, and a few might generate two or more. The two or more case is the scary one where an attacker could siphon off a photon to measure.