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Oxford Quantum Talks Archive

Modal quantum theory

Benjamin Schumacher, Kenyon College
Quantum Physics and Logic 2010, May 2010, University of Oxford

We present a discrete model theory similar in structure to ordinary quantum mechanics, but based on a finite field instead of complex amplitudes. The interpretation of this theory involves only the `modal' concepts of possibility and necessity rather than quantitative probability measures. Despite its simplicity, our model theory includes entangled states and has versions of both Bell's theorem and the no cloning theorem.

[video] [streaming video]