Hacker News new | ask | show | jobs
by Sharlin 2832 days ago
Quantum computers are intrinsically stochastic machines. Quantum algorithms are about hedging the bets so that you get the "correct" answer at some p>0.5. Then you just repeat the computation until you're reasonably sure you have the right answer. In the Copenhagen interpretation the wavefunction magically "collapses" to one outcome, in Everett interpretation the wavefunction decoheres producing both outcomes in separate "worlds".