679 citations · 5.1k across the 37 of their papers we have counts for
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Operational multipartite entanglement classes for symmetric photonic qubit states
N. Kiesel, W. Wieczorek, S. Krins +3
We present experimental schemes that allow to study the entanglement classes of all symmetric states in multiqubit photonic systems. In addition to comparing the presented schemes…
Experimental demonstration of universal symmetric quantum telecloning
S. Gaertner, J. Lau, N. Kiesel +2
Quantum telecloning is a multiparty quantum communication protocol which allows quantum information broadcasting. It can be, therefore, seen as a generalization of quantum teleport…
Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states
Geza Toth, Witlef Wieczorek, Roland Krischek +3
We present general numerical methods to construct witness operators for entanglement detection and estimation of the fidelity. Our methods are applied to detecting entanglement in…
Experimental entanglement of a six-photon symmetric Dicke state
Witlef Wieczorek, Roland Krischek, Nikolai Kiesel +3
We report on the experimental observation and characterization of a six-photon entangled Dicke state. We obtain a fidelity as high as 0.6540.024 and prove genuine six-photon e…
Multi-qubit entanglement engineering via projective measurements
Witlef Wieczorek, Nikolai Kiesel, Christian Schmid +1
So far, various multi-photon entangled states have been observed experimentally by using different experimental set-ups. Here, we present a scheme to realize many SLOCC-inequivalen…