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Spectra of phase point operators in odd prime dimensions and the extended Clifford group
D. M. Appleby, Ingemar Bengtsson, S. Chaturvedi
We analyse the role of the Extended Clifford group in classifying the spectra of phase point operators within the framework laid out by Gibbons et al for setting up Wigner distribu…
A Curious Geometrical Fact About Entanglement
Ingemar Bengtsson
I sketch how the set of pure quantum states forms a phase space, and then point out a curiousity concerning maximally entangled pure states: they form a minimal Lagrangian submanif…
Note on non-metric gravity
Ingemar Bengtsson
We discuss a class of alternative gravity theories that are specific to four dimensions, do not introduce new degrees of freedom, and come with a physical motivation. In particular…
Quantum entanglement
Ryszard Horodecki, Pawel Horodecki, Michal Horodecki +1
All our former experience with application of quantum theory seems to say: {\it what is predicted by quantum formalism must occur in laboratory}. But the essence of quantum formali…