activity
19972026
most citedOn Bell measurements for teleportation

542 citations · 4.3k across the 54 of their papers we have counts for

collaborators

56 papers

quant-ph2026

Security framework for practical quantum key distribution with imperfect devices

Jerome Wiesemann, John Burniston, Devashish Tupkary +1

Practical quantum key distribution (QKD) systems inevitably exhibit imperfections in both the source and detector. At the same time, the behavior of these imperfect devices is neve…

quant-ph2026

Enforcing IID structure on time-bin encoded QKD protocols via coarse-graining

Shlok Nahar, Shihong Pan, Norbert Lütkenhaus

Many security proofs for quantum key distribution (QKD) require Bob's measurement to have a tensor-product structure across protocol rounds, with some techniques requiring the stro…

quant-ph2025★ 1 cited

Drone- and Vehicle-Based Quantum Key Distribution

Andrew Conrad, Roderick Cochran, Daniel Sanchez-Rosales +17

Quantum key distribution is a point-to-point communication protocol that leverages quantum mechanics to enable secure information exchange. Commonly, the transmitter and receiver s…

quant-ph2024★ 2 cited

Phase error rate estimation in QKD with imperfect detectors

Devashish Tupkary, Shlok Nahar, Pulkit Sinha +1

We present a finite-size security proof of the decoy-state BB84 QKD protocol against coherent attacks, using entropic uncertainty relations, for imperfect detectors. We apply this…

quant-ph2024★ 9 cited

Improved Decoy-state and Flag-state Squashing Methods

Lars Kamin, Norbert Lütkenhaus

In this work, we present an improved analysis for decoy-state methods, enhancing both achievable key rates and recovering analytical results for the single intensity scenario. Our…

quant-ph2024★ 6 cited

Finite-size analysis of prepare-and-measure and decoy-state QKD via entropy accumulation

Lars Kamin, Amir Arqand, Ian George +2

An important goal in quantum key distribution (QKD) is the task of providing a finite-size security proof without the assumption of collective attacks. For prepare-and-measure QKD,…