389 citations · 2.4k across the 57 of their papers we have counts for
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quant-ph2006★ 24 cited
Entanglement witnesses and a loophole problem
Patrick Skwara, Hermann Kampermann, Matthias Kleinmann +1
We consider a possible detector-efficiency loophole in experiments that detect entanglement via the local measurement of witness operators. Here, only local properties of the detec…
quant-ph2006★ 26 cited
Finite key analysis for symmetric attacks in quantum key distribution
Tim Meyer, Hermann Kampermann, Matthias Kleinmann +1
We introduce a constructive method to calculate the achievable secret key rate for a generic class of quantum key distribution protocols, when only a finite number n of signals is…