Exposed positive maps in M₄(C)
classification
🧮 math-ph
math.MPquant-ph
keywords
mapsexposedpositivebreuer-hallcalledconeconvexfamily
read the original abstract
It is shown that the family of so called Breuer-Hall maps in M_4(C) possesses strong spanning property and hence they are exposed in the convex cone of positive maps in M_4(C)
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