Implementation of an efficient linear-optical quantum router

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73588452" target="_blank" >RIV/61989592:15310/18:73588452 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/18:00496482

Result on the web

<a href="https://www.nature.com/articles/s41598-018-31273-0.pdf" target="_blank" >https://www.nature.com/articles/s41598-018-31273-0.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-018-31273-0" target="_blank" >10.1038/s41598-018-31273-0</a>

Result language

angličtina

Original language name

Implementation of an efficient linear-optical quantum router

Original language description

For several decades, scientists have been aware of significant benefits allowing quantum information processing technologies to surpass their classical counterparts. Recent technological development allows these benefits to be tested experimentally and in some cases also implemented in practical devices. So far the majority of experimental quantum networks was limited to peer-to-peer communications between two parties. Practical implementation of quantum communications networks, however, needs to address the problem of scalability to serve large numbers of users. Similarly to classical computer networks, their quantum counterparts would require routing protocols to direct the signal from its source to destination. Devices implementing these routing protocols are called quantum routers and have recently been subject of an intense research. In this paper, we report on experimental implementation of a linear-optical quantum router. Our device allows single-photon polarization-encoded qubits to be routed coherently into two spatial output modes depending on the state of two identical control qubits. The polarization qubit state of the routed photon is maintained during the routing operation. The success probability of our scheme can be increased up to 25% making it the most efficient linear-optical quantum router developed to this date.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Volume of the periodical

8

Issue of the periodical within the volume

SEP

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

"13480-1"-"13480-8"

UT code for WoS article

000444024100015

EID of the result in the Scopus database

2-s2.0-85052994163