Exposed positive maps in matrix algebras define a dense subset of extremal maps. We provide a sufficient condition for a positive map to be exposed. This is an analog of a spanning property which guaranties that a positive map is optimal. We analyze a class of decomposable maps for which this condition is also necessary
AbstractUsing the natural duality between linear functionals on tensor products of C∗-algebras with ...
We provide a new class of indecomposable entanglement witnesses. In 4 x 4 case it reproduces the wel...
In this note, we discuss dilation-theoretic matrix parametrizations of contractions and positive mat...
Exposed positive maps in matrix algebras define a dense subset of extremal maps. We provide a class ...
It is well known that so called Breuer-Hall positive maps used in entanglement theory are optimal. W...
We provide a partial classification of positive linear maps in matrix algebras which is based on a f...
We provide a new class of positive maps in matrix algebras. The construction is based on the family ...
We construct a new class of positive indecomposable maps in the algebra of 'd x d' complex matrices....
We characterize a convex subset of entanglement witnesses for two qutrits. Equivalently, we provide ...
We provide a generalization of the reduction and Robertson positive maps in matrix algebras. They gi...
We build apon our previous work, the Buckley-\vSivic method for simultaneous construction of familie...
comments are welcomeThe theory of positive maps plays a central role in operator algebras and functi...
We construct a new class of positive indecomposable maps in the algebra of `d x d' complex matrices....
We provide a class of optimal nondecomposable entanglement witnesses for 4N x 4N composite quantum s...
We give a criterion for a positive mapping on the space of operators on a Hilbert space to be indeco...
AbstractUsing the natural duality between linear functionals on tensor products of C∗-algebras with ...
We provide a new class of indecomposable entanglement witnesses. In 4 x 4 case it reproduces the wel...
In this note, we discuss dilation-theoretic matrix parametrizations of contractions and positive mat...
Exposed positive maps in matrix algebras define a dense subset of extremal maps. We provide a class ...
It is well known that so called Breuer-Hall positive maps used in entanglement theory are optimal. W...
We provide a partial classification of positive linear maps in matrix algebras which is based on a f...
We provide a new class of positive maps in matrix algebras. The construction is based on the family ...
We construct a new class of positive indecomposable maps in the algebra of 'd x d' complex matrices....
We characterize a convex subset of entanglement witnesses for two qutrits. Equivalently, we provide ...
We provide a generalization of the reduction and Robertson positive maps in matrix algebras. They gi...
We build apon our previous work, the Buckley-\vSivic method for simultaneous construction of familie...
comments are welcomeThe theory of positive maps plays a central role in operator algebras and functi...
We construct a new class of positive indecomposable maps in the algebra of `d x d' complex matrices....
We provide a class of optimal nondecomposable entanglement witnesses for 4N x 4N composite quantum s...
We give a criterion for a positive mapping on the space of operators on a Hilbert space to be indeco...
AbstractUsing the natural duality between linear functionals on tensor products of C∗-algebras with ...
We provide a new class of indecomposable entanglement witnesses. In 4 x 4 case it reproduces the wel...
In this note, we discuss dilation-theoretic matrix parametrizations of contractions and positive mat...
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