Quantum Parrondo's game with random strategies

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Authors	KOŠÍK Jozef MISZCZAK Jarek A. BUŽEK Vladimír
Year of publication	2007
Type	Article in Periodical
Magazine / Source	Journal of Modern Optics
MU Faculty or unit	Faculty of Informatics
Citation
Field	Informatics
Keywords	quantum Parrondo game
Description	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.
Related projects:	Highly Parallel and Distributed Computing Systems Quantum multipartite computation, communication and security