186 citations · 249 across the 6 of their papers we have counts for
6 papers
Statistical-mechanical description of quantum entanglement
J. K. Korbicz, F. Hulpke, A. Osterloh +1
We present a description of finite dimensional quantum entanglement, based on a study of the space of all convex decompositions of a given density matrix. On this space we construc…
A two-way algorithm for the entanglement problem
Florian Hulpke, Dagmar Bruss
We propose an algorithm which proves a given bipartite quantum state to be separable in a finite number of steps. Our approach is based on the search for a decomposition via a coun…
Unitarity as preservation of entropy and entanglement in quantum systems
Florian Hulpke, Uffe V. Poulsen, Anna Sanpera +3
The logical structure of Quantum Mechanics (QM) and its relation to other fundamental principles of Nature has been for decades a subject of intensive research. In particular, the…
Simplifying Schmidt number witnesses via higher-dimensional embeddings
Florian Hulpke, Dagmar Bruss, Maciej Lewenstein +1
We apply the generalised concept of witness operators to arbitrary convex sets, and review the criteria for the optimisation of these general witnesses. We then define an embedding…
Entanglement properties of composite quantum systems
K. Eckert, O. Gühne, F. Hulpke +6
We present here an overview of our work concerning entanglement properties of composite quantum systems. The characterization of entanglement, i.e. the possibility to assert if a g…
Reflections upon separability and distillability
D. Bruss, J. I. Cirac, P. Horodecki +4
We present an abstract formulation of the so-called Innsbruck-Hannover programme that investigates quantum correlations and entanglement in terms of convex sets. We present a unifi…