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math-ph2012
On the additivity of the minimum output entropy
Norbert Riedel
It is shown that for real finite dimensional Hilbert spaces the additivity property of the minimum output entropy for quantum channels is always true.
math.NT2012★ 2 cited
On the Markoff Equation
Norbert Riedel
A triple (a, b, c) of positive integers is called a Markoff triple iff it satisfies the Diophantine equation a2+b2+c2=abc . Recasting the Markoff tree, whose vertices are Markoff t…