Quantum Parrondo's game with random strategies

Autorzy Kosik J.; Miszczak J.; Buzek V.
Tytuł Quantum Parrondo's game with random strategies
Czasopismo Journal of Modern Optics
Rok 2007
Status Published
Tom 54
Strony 2275–228
Abstrakt We present a quantum implementation of Parrondo's game with randomly switched strategies using (1) a quantum walk as a source of 'randomness' and (2) a completely positive (CP) map as a randomized evolution. The game exhibits the same paradox as in the classical setting where a combination of two losing strategies might result in a winning strategy. We show that the CP-map scheme leads to significantly lower net gain than the quantum-walk scheme.