QUANTUM RANDOM-NUMBER GENERATION AND KEY SHARING

J G RARITY, P C M OWENS, P R TAPSTER

Research output: Contribution to journalArticle (Academic Journal)

147 Citations (Scopus)

Abstract

We review the status of interferometry-based quantum cryptography and compare photon-pair and faint-pulse schemes. The key technical limitations in both cases are the propagation losses and detector performance. We also discuss a simple approach to generating the random measurement bases used in quantum cryptography systems which exploits random partition at a beam splitter. This removes the need for active components in the receiver, reducing system complexity and losses.

Original languageEnglish
Pages (from-to)2435-2444
Number of pages10
JournalJournal of Modern Optics
Volume41
Issue number12
Publication statusPublished - Dec 1994

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