Physics – Quantum Physics
Scientific paper
2003-01-15
Commun, Theor. Phys. 40 (2003) 655-658
Physics
Quantum Physics
5 pages and 3 figures
Scientific paper
We study a quantum game played by two players with restricted multiple strategies. It is found that in this restricted quantum game Nash equilibrium does not always exist when the initial state is entangled. At the same time, we find that when Nash equilibrium exists the pay off function is usually different from that in the classical counterpart except in some special cases. This presents an explicit example where quantum game and classical game may differ. When designing a quantum game with limited strategies, the allowed strategy should be carefully chosen according to the type of initial state.
Chen Bo
Long Gui Lu
Ma Ying-Jun
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