" An Interpolation Problem for Completely Positive Maps
on Matrices. II"
By
Abstract: In this second part of our
seminar talk, we explain the idea of density matrices associated to
linear functionals on $*$-subspaces of matrices, that was inspired by the
Smith-Ward linear functional and Arveson's
Hahn-Banach type Theorem. Then we talk about the intricate relation between the
positivity of the density matrix and the positivity of the corresponding linear
functional.
Date: Tuesday, November 05, 2013
Time: 16.00
Place: Mathematics Seminar Room, SA-141
Tea and cookies will be served before the
seminar.