Free Fisher Information for Non-Tracial States

Details Free Fisher Information for Non-Tracial States Free Fisher Information for Non-Tracial States

2001-01-17

arxiv.org/abs/math/0101137v1

Mathematics

Operator Algebras

Scientific paper

We extend Voiculescu's microstates-free definitions of free Fisher information and free entropy to the non-tracial framework. We explain the connection between these quantities and free entropy with respect to certain completely positive maps acting on the core of the non-tracial non-commutative probability space. We give a condition on free Fisher information of an infinite family of variables, which guarantees factoriality of the von Neumann algebra they generate.

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