200 citations · 1.2k across the 29 of their papers we have counts for
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Maximum -body correlations do not in general imply genuine multipartite entanglement
Christopher Eltschka, Jens Siewert
The existence of correlations between the parts of a quantum system on the one hand, and entanglement between them on the other, are different properties. Yet, one intuitively woul…
Joint Schmidt-type decomposition for two bipartite pure quantum states
Christopher Eltschka, Jens Siewert
It is well known that the Schmidt decomposition exists for all pure states of a two-party quantum system. We demonstrate that there are two ways to obtain an analogous decompositio…
Dimensionally sharp inequalities for the linear entropy
Simon Morelli, Claude Klöckl, Christopher Eltschka +2
We derive an inequality for the linear entropy, that gives sharp bounds for all finite dimensional systems. The derivation is based on generalised Bloch decompositions and provides…