Experimental demonstration of quantum gain in a zero-sum game

Details Experimental demonstration of quantum gain in a zero-sum game Experimental demonstration of quantum gain in a zero-sum game

Mar 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012njph...14c3002z&link_type=abstract

New Journal of Physics, Volume 14, Issue 3, pp. 033002 (2012).

Physics

Scientific paper

We propose and experimentally demonstrate a zero-sum game that is in a fair Nash equilibrium for classical players, but has the property that a quantum player can always win using an appropriate strategy. The gain of the quantum player is measured experimentally for different quantum strategies and input states. It is found that the quantum gain is maximized by a maximally entangled state, but does not decrease to zero when entanglement disappears. Instead, it links with another kind of quantum correlation described by discord for the qubit case and the connection is demonstrated both theoretically and experimentally.

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