The effect of multi-pair signal states in quantum cryptography with entangled photons

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F02%3A00001456" target="_blank" >RIV/61989592:15310/02:00001456 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

The effect of multi-pair signal states in quantum cryptography with entangled photons

Original language description

Real sources of entangled photon pairs (such as parametric down conversion) are not perfect. They produce quantum states that contain more than only one photon pair with some probability. Several aspects of the use of such states for the purpose of quantum key distribution are discussed. It is shown that the presence of "multi-pair" signals (together with low detection efficiencies) causes errors in transmission even in the absence of an eavesdropper. Moreover, it is shown that even the eyvesdropping, that draws information only from these "multi-pair" signals, increases the error rate.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BH - Optics, masers and lasers

OECD FORD branch

—

Project

<a href="/en/project/LN00A015" target="_blank" >LN00A015: Research center for optics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2002

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Quantum and Semiclassical Optics

ISSN

1355-5111

e-ISSN

—

Volume of the periodical

4

Issue of the periodical within the volume

N

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

109-113

UT code for WoS article

—

EID of the result in the Scopus database

—