Citation
N. Gisin et B. Huttner, QUANTUM CLONING, EAVESDROPPING AND BELLS-INEQUALITY, Physics letters. A, 228(1-2), 1997, pp. 13-21
Citations number
15
Categorie Soggetti
Physics
Journal title
ISSN journal
03759601
Volume
228
Issue
1-2
Year of publication
1997
Pages
13 - 21
Database
ISI
SICI code
0375-9601(1997)228:1-2<13:QCEAB>2.0.ZU;2-I
Abstract
We analyze various eavesdropping strategies on a quantum cryptographic
channel. We present the optimal strategy for an eavesdropper restrict
ed to a two-dimensional probe, interacting on-line with each transmitt
ed signal. The link between safety of the transmission and the violati
on of Bell's inequality is discussed. We also use a quantum copying ma
chine for eavesdropping and for broadcasting quantum information. (C)
1997 Elsevier Science B.V.