Protocols Archives - Page 2 of 2 - IEEE Transactions on Quantum Engineering

Entanglement Distribution in a Quantum Network: A Multicommodity Flow-Based Approach

October 1, 2020Kaushik Chakraborty; David Elkouss; Bruno Rijsman; Stephanie WehnerOpen Access, Quantum InformationLinear programming, Optimization, Probabilistic logic, Protocols, Quantum entanglement, Repeaters, Standards

We consider the problem of optimizing the achievable EPR-pair distribution rate between multiple source-destination pairs in a quantum Internet, where the repeaters may perform a probabilistic Bell-state measurement and we may impose a minimum end-to-end fidelity as a requirement. We construct an efficient linear programming (LP) formulation that computes the maximum total achievable entanglement distribution […]

High-Dimensional Semiquantum Cryptography

A semiquantum key distribution (SQKD) protocol allows two users, one of whom is restricted in their quantum capabilities to being nearly classical, to establish a shared secret key, secure against an all-powerful adversary. The study of such protocols helps to answer the fundamental question of “how quantum” must a protocol be to gain an advantage […]