Quantum Parrondo's game with random strategies

Details Quantum Parrondo's game with random strategies Quantum Parrondo's game with random strategies

2007-04-23

arxiv.org/abs/0704.2937v1

J. Mod. Optics, Vol. 54, 13 (2007), pp. 2275 - 2287

Physics

Quantum Physics

Scientific paper

10.1080/09500340701408722

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.

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