@inproceedings{154202d20fc8459490c4eaa80263a1e2,
title = "Using fewer qubits to correct errors in the three-stage QKD protocol",
abstract = "This paper discusses correcting small rotation errors in the three-stage quantum key distribution (QKD) protocol using only two logical qubits thereby increasing communication efficiency. Further, we can correct errors before they accumulate at every stage ensuring that the errors remain small. Three-stage QKD is tolerant of multi-photon pulses for key exchange and therefore more applicable in real world scenarios. However, given that it requires back and forth communication, any channel errors that occur accumulate. We discuss the proposed error correction protocol in detail and workout each step. We show how the two transacting parties can correct small rotation errors using just two logical qubits in a majority of cases. We compute the efficiency increase and bound on the magnitude of rotation errors that can be tolerated.",
keywords = "Quantum error correction, Three stage quantum key distribution",
author = "Abhishek Parakh",
note = "Funding Information: The author wishes to thank the National Science Foundation (NSF) for supporting this work through award no. 1623380. Publisher Copyright: {\textcopyright} 2018 SPIE.; Quantum Information Science and Technology IV 2018 ; Conference date: 10-09-2018 Through 12-09-2018",
year = "2018",
doi = "10.1117/12.2325891",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Gruneisen, {Mark T.} and Miloslav Dusek and Rarity, {John G.}",
booktitle = "Quantum Information Science and Technology IV",
}