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Quantum voting and violation of Arrow’s Impossibility Theorem

QuICS
March 20, 2015 - 2:00pm
Speaker: 
Nicole Yunger Halpern
Institution: 
Caltech

We propose a quantum voting system in the spirit of quantum games such as the quantum Prisoner’s Dilemma. Our scheme violates a quantum analogue of Arrow’s Impossibility Theorem, which states that every (classical) constitution endowed with three innocuous-seeming properties is a dictatorship. Superpositions, interference, and entanglement of votes feature in voting tactics available to quantum voters but not to classical. (This work was conducted with Ning Bao. Reference: arXiv:1501.00458v1.)

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