In honour of Max Planck (1858–1947) on the occasion of his 150th birthday.
Recent developments in quantum key distribution: Theory and practice†
Article first published online: 4 FEB 2008
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Annalen der Physik
Volume 17, Issue 2-3, pages 158–175, February 2008
How to Cite
Mauerer, W., Helwig, W. and Silberhorn, Ch. (2008), Recent developments in quantum key distribution: Theory and practice. Ann. Phys., 17: 158–175. doi: 10.1002/andp.200710284
- Issue published online: 4 FEB 2008
- Article first published online: 4 FEB 2008
- Manuscript Received: 30 NOV 2007
- quantum cryptography;
- quantum communication;
- experimental imperfections
Quantum key distribution is among the foremost applications of quantum mechanics, both in terms of fundamental physics and as a technology on the brink of commercial deployment. Starting from principal schemes and initial proofs of unconditional security for perfect systems, much effort has gone into providing secure schemes which can cope with numerous experimental imperfections unavoidable in real world implementations. In this paper, we provide a comparison of various schemes and protocols. We analyse their efficiency and performance when implemented with imperfect physical components. We consider how experimental faults are accounted for using effective parameters. We compare various recent protocols and provide guidelines as to which components propose best advances when being improved.