294 citations · 335 across the 2 of their papers we have counts for
2 papers
quant-ph2009★ 41 cited
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…
quant-ph2009★ 294 cited
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…