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Continuous‐Variable Quantum Key Distribution with Gaussian Modulation—The Theory of Practical Implementations (Adv. Quantum Technol. 1/2018)
Author(s) -
Laudenbach Fabian,
Pacher Christoph,
Fung ChiHang Fred,
Poppe Andreas,
Peev Momtchil,
Schrenk Bernhard,
Hentschel Michael,
Walther Philip,
Hübel Hannes
Publication year - 2018
Publication title -
advanced quantum technologies
Language(s) - English
Resource type - Journals
ISSN - 2511-9044
DOI - 10.1002/qute.201870011
Subject(s) - quantum key distribution , quantum cryptography , key (lock) , computer science , imperfect , encryption , cryptography , continuous variable , key distribution , quantum information science , theoretical computer science , computer security , quantum information , quantum , mathematics , quantum entanglement , quantum mechanics , physics , public key cryptography , mathematical optimization , linguistics , philosophy
Quantum key distribution allows two parties to establish an encryption key that, by the laws of physics, no other party can have knowledge on and therefore enables information‐theoretic communication security. In particular, quantum key distribution with continuous variables (CV‐QKD) represents a way to exercise quantum cryptography at a high technological readiness level taking advantage of the leading‐edge technological infrastructure provided by the telecom industry. The review by Fabian Laudenbach et al. (article number 1800011 ) provides a detailed introduction to the mathematical tools and relations required for the security analysis of CV‐QKD and particularly deals with the effects of necessarily imperfect hardware components.