Thursday, September 6, 2012

1007.5464 (Andreas Knauf et al.)

Entropy Distance: New Quantum Phenomena    [PDF]

Andreas Knauf, Stephan Weis
We study a curve of Gibbsian families of complex 3x3-matrices and point out new features, absent in commutative finite-dimensional algebras: a discontinuous maximum-entropy inference, a discontinuous entropy distance and non-exposed faces of the mean value set. We analyze these problems from various aspects including convex geometry, topology and information geometry. This research is motivated by a theory of info-max principles, where we contribute by computing first order optimality conditions of the entropy distance.
View original: http://arxiv.org/abs/1007.5464

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