In fact, a mutant which used the coding scheme to recognize supposed masters and always defected against them, but played TFT with everyone else, should do better than a slave, and without slaves the master-type agents are not going to do well.
...there is a basic problem with most of the studies of quantum games to date. Whatever the quantum game does can usually be accounted for within classical game theory, simply by appealing to a more complicated game structure. This is because quantum games can ultimately be represented by a classical number of players, strategies and pay-offs - precisely the objects studied in classical game theory. Quantum games therefore do not appear conceptually different from their classical counterparts.
Jens Eisert, Martin Wilkens and Marcus Lewenstein at the University of Potsdam in Germany proposed a quantized version of the prisoner's dilemma game (figure 3). They claimed that the resulting game possessed a unique Nash equilibrium that also yielded the maximum possible pay-offs - the game was said to be "Pareto optimal", a concept invented by the Italian economist Vilfredo Pareto. The players in the quantum game apparently managed to resolve the prisoner's dilemma!
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