26 citations · 63 across the 5 of their papers we have counts for
5 papers
Secret key rates for coherent attacks
Markus Mertz, Hermann Kampermann, Sylvia Bratzik +1
We develop a new method to quantify the secret key rate for permutation-invariant protocols for coherent attacks and finite resources. The method reduces the calculation of secret…
Quantum key distribution with finite resources: Taking advantage of quantum noise
Markus Mertz, Hermann Kampermann, Zahra Shadman +1
We compare the effect of different noise scenarios on the achievable rate of an epsilon-secure key for the BB84 and the six-state protocol. We study the situation where quantum noi…
Finite-key analysis of the six-state protocol with photon-number-resolution detectors
Silvestre Abruzzo, Markus Mertz, Hermann Kampermann +1
The six-state protocol is a discrete-variable protocol for quantum key distribution, that permits to tolerate a noisier channel than the BB84 protocol. In this work we provide a lo…
QKD with finite resources: secret key rates via Rényi entropies
Silvestre Abruzzo, Hermann Kampermann, Markus Mertz +1
A realistic Quantum Key Distribution (QKD) protocol necessarily deals with finite resources, such as the number of signals exchanged by the two parties. We derive a bound on the se…
Min-entropy and quantum key distribution: non-zero key rates for "small" numbers of signals
Sylvia Bratzik, Markus Mertz, Hermann Kampermann +1
We calculate an achievable secret key rate for quantum key distribution with a finite number of signals, by evaluating the min-entropy explicitly. The min-entropy can be expressed…