Quantum interference
Andrew M. Sessler, USDOE Director. Office of Science. Office of High Energy Physics (US) · 2004
How to Always Win at Coin Tossing • Classical-Quantum Penny Flip-Over • 1.Put penny H up in a box • 2. Q turns the box over or not • 3. C turns the box over or not • 4. Q turns it over or not • 5.If H turns up (not T) then Q (you are Q) wins Classical Analysis N is no flip F is flip H is heads T is tails Check: Second column, first row: Q goes first and N, C goes second and N, Q goes last and F Result should be T Q options across C options down Strategy: No fixed strategy (or other guy will find out) Best just flip, or not, with probability 1/2 Payoff: Zero on the average NN FN FN