Gabriel Pietrzkowski

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We consider the problem of separability: decide whether a Hermitian operator on a finite dimensional Hilbert tensor product H = H ⊗ · · ·⊗H is separable or entangled. We show that the tensor convolution ( φ . . . φ ) : G → H defined for mappings φ : G → H μ on an almost arbitrary locally compact abelian group G, give rise to formulation of an equivalent(More)
We study a separability problem suggested by mathematical description of bipartite quantum systems. We consider Hermitian 2forms on the tensor product H = K⊗L, where K,L are finite dimensional complex spaces. Inspired by quantum mechanical terminology we call such a form separable if it is a convex combination of hermitian tensor products σ∗ p ⊙ σp of(More)
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