278 citations · 545 across the 19 of their papers we have counts for
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Rotationally invariant multipartite states
Dariusz Chruscinski, Andrzej Kossakowski
We construct a class of multipartite states possessing rotational SO(3) symmetry -- these are states of K spin-j_A particles and K spin-j_B particles. The construction of symmetric…
On the structure of entanglement witnesses and new class of positive indecomposable maps
Dariusz Chruscinski, Andrzej Kossakowski
We construct a new class of positive indecomposable maps in the algebra of 'd x d' complex matrices. Each map is uniquely characterized by a cyclic bistochastic matrix. This class…
A new class of states with positive partial transposition
Dariusz Chruscinski, Andrzej Kossakowski
We construct a new class of PPT states for bipartite "d x d" systems. This class is invariant under the maximal commutative subgroup of U(d) and contains as special cases almost al…
Relations Between Quantum Maps and Quantum States
M. Asorey, A. Kossakowski, G. Marmo +1
The relation between completely positive maps and compound states is investigated in terms of the notion of quantum conditional probability.
On multipartite invariant states II. Orthogonal symmetry
Dariusz Chruscinski, Andrzej Kossakowski
We construct a new class of multipartite states possessing orthogonal symmetry. This new class defines a convex hull of multipartite states which are invariant under the action of…
On multipartite invariant states I. Unitary symmetry
Dariusz Chruscinski, Andrzej Kossakowski
We propose a natural generalization of bipartite Werner and isotropic states to multipartite systems consisting of an arbitrary even number of d-dimensional subsystems (qudits). Th…