Norbert Lütkenhaus
4 papers in the PaperMetrix corpus
Papers by this author
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Efficient time-bin qubit analyzer compatible with multimode optical channels
2015 · arXiv (Cornell University)
Time-bin encoded photonic qubits are robust against decoherence in birefringent media such as optical fibers, which has led to many successful quantum communication demonstrations, including a Mach-Zehnder interferometer-based system, plug-and-play quantum key distribution (QKD), differential …
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Entanglement verification with detection-efficiency mismatch
2017 · Physical Review A
The security analysis of quantum key distribution is difficult to perform when there is efficiency mismatch between various threshold detectors involved in an experimental setup. Even the verification that the device actually performs in the …
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Numerical security proof for the decoy-state BB84 protocol and measurement-device-independent quantum key distribution resistant against large basis misalignment
2022 · Physical Review Research
In this work, we incorporate decoy-state analysis into a well-established numerical framework for key rate calculation, and we apply the numerical framework to decoy-state BB84 and measurement-device-independent (MDI) QKD protocols as examples. Additionally, we combine …
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Imperfect detectors for adversarial tasks with applications to quantum key distribution
2026 · Quantum
Security analyses in quantum key distribution (QKD) and other adversarial quantum tasks often assume perfect device models. However, real-world implementations often deviate from these models. Thus, it is important to develop security proofs that account …