23 citations · 33 across the 6 of their papers we have counts for
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quant-ph2007★ 23 cited
Entangled states close to the maximally mixed state
Roland Hildebrand
We give improved upper bounds on the radius of the largest ball of separable states of an m-qubit system around the maximally mixed state. The ratio between the upper bound and the…
math.RA2007★ 1 cited
Semidefinite descriptions of separable matrix cones
Roland Hildebrand
Let K, K' be convex cones residing in finite-dimensional real vector spaces E, E'. An element in the tensor product E \otimes E' is K \otimes K'-separable if it can be represented…