Security against Collective Attacks for a Continuous-Variable Quantum Key Distribution Protocol Using Homodyne Detection and Postselection

Autor:	Ryo Namiki
Rok vydání:	2023
Předmět:	Quantum Physics FOS: Physical sciences General Physics and Astronomy Quantum Physics (quant-ph) Computer Science::Cryptography and Security
Zdroj:	Journal of the Physical Society of Japan. 92
ISSN:	1347-4073 0031-9015
Popis:	We analyze the security against collective attacks for a homodyne-based continuous-variable quantum key distribution protocol using binary coherent states and postselection. We derive a lower bound of the secret key rate in an asymptotic scenario, and numerically optimize it for the case of a symmetric Gaussian channel. Comment: 7 pages, 2 figures
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b2322892dd94acbdc3867e10a12cef1 https://doi.org/10.7566/jpsj.92.014001 Zobrazit plný text záznamu