Experimental quantum forgery of quantum optical money

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F17%3A73581686" target="_blank" >RIV/61989592:15310/17:73581686 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/17:00478737

Result on the web

<a href="https://www.nature.com/articles/s41534-017-0010-x.pdf" target="_blank" >https://www.nature.com/articles/s41534-017-0010-x.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41534-017-0010-x" target="_blank" >10.1038/s41534-017-0010-x</a>

Result language

angličtina

Original language name

Experimental quantum forgery of quantum optical money

Original language description

Unknown quantum information cannot be perfectly copied (cloned). This statement is the bedrock of quantum technologies and quantum cryptography, including the seminal scheme of Wiesner&apos;s quantum money, which was the first quantum-cryptographic proposal. Surprisingly, to our knowledge, quantum money has not been tested experimentally yet. Here, we experimentally revisit the Wiesner idea, assuming a banknote to be an image encoded in the polarization states of single photons. We demonstrate that it is possible to use quantum states to prepare a banknote that cannot be ideally copied without making the owner aware of only unauthorized actions. We provide the security conditions for quantum money by investigating the physically-achievable limits on the fidelity of 1-to-2 copying of arbitrary sequences of qubits. These results can be applied as a security measure in quantum digital right management.

Czech name

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Czech description

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Type

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

CEP classification

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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

2017

Confidentiality

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

Name of the periodical

npj Quantum Information

ISSN

2056-6387

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

MAR

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

"7-1"-"7-8"

UT code for WoS article

000397661600001

EID of the result in the Scopus database

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