Recent content by foodini

AGH! No! Stimulated emission of photons - as in the effect used to generate a coherent laser beam.

Okay, it sounds like we're moving in the right direction. It is true, then, that one can make however many identical copies of the photon they like, but something between that action and passing them through different polarizing filters is my problem? I suspect that separating them into...

That would be the Mozart Requiem. God I'm such a geek - not only do I recognize the blasted thing but I can (very roughly) translate it. *sigh* back to work.

If a QC communication uses 4 different porarization directions (0, pi/4, pi/2, 3pi/4) and you make 4 copies of the photon, you can check each of these. Whichever one passes tells you what the original was. Doh. Just got too much into the details and blew the english... Usually, 4...

Quantum cryptography depends upon the notion that a sender transmits photons of known polarity, then the receiver choses random polarizations to filter the incoming transmission through. As each photon is either accepted, therefore telling the receiver that he correctly guess the sent polarity...