Experimental creation of multi-photon high-dimensional layered quantum states

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14610%2F20%3A00114454" target="_blank" >RIV/00216224:14610/20:00114454 - isvavai.cz</a>

Výsledek na webu

<a href="https://rdcu.be/caHuH" target="_blank" >https://rdcu.be/caHuH</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41534-020-00318-6" target="_blank" >10.1038/s41534-020-00318-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental creation of multi-photon high-dimensional layered quantum states

Popis výsledku v původním jazyce

Quantum entanglement is one of the most important resources in quantum information. In recent years, the research of quantum entanglement mainly focused on the increase in the number of entangled qubits or the high-dimensional entanglement of two particles. Compared with qubit states, multipartite high-dimensional entangled states have beneficial properties and are powerful for constructing quantum networks. However, there are few studies on multipartite high-dimensional quantum entanglement due to the difficulty of creating such states. In this paper, we experimentally prepared a multipartite high-dimensional state vertical bar psi 442 &gt; = 1/2(vertical bar 000 &gt;+vertical bar 110 &gt;+vertical bar 221 &gt;+vertical bar 331 &gt;) by using the path mode of photons. We obtain the fidelity F = 0.854 +/- 0.007 of the quantum state, which proves a real multipartite high-dimensional entangled state. Finally, we use this quantum state to demonstrate a layered quantum network in principle. Our work highlights another route toward complex quantum networks.

Název v anglickém jazyce

Experimental creation of multi-photon high-dimensional layered quantum states

Popis výsledku anglicky

Quantum entanglement is one of the most important resources in quantum information. In recent years, the research of quantum entanglement mainly focused on the increase in the number of entangled qubits or the high-dimensional entanglement of two particles. Compared with qubit states, multipartite high-dimensional entangled states have beneficial properties and are powerful for constructing quantum networks. However, there are few studies on multipartite high-dimensional quantum entanglement due to the difficulty of creating such states. In this paper, we experimentally prepared a multipartite high-dimensional state vertical bar psi 442 &gt; = 1/2(vertical bar 000 &gt;+vertical bar 110 &gt;+vertical bar 221 &gt;+vertical bar 331 &gt;) by using the path mode of photons. We obtain the fidelity F = 0.854 +/- 0.007 of the quantum state, which proves a real multipartite high-dimensional entangled state. Finally, we use this quantum state to demonstrate a layered quantum network in principle. Our work highlights another route toward complex quantum networks.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/GF17-33780L" target="_blank" >GF17-33780L: Vícečásticové kvantové provázání a bezpečnost</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

NPJ QUANTUM INFORMATION

ISSN

2056-6387

e-ISSN

2056-6387

Svazek periodika

6

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

5

Strana od-do

1-5

Kód UT WoS článku

000580565400001

EID výsledku v databázi Scopus

2-s2.0-85093824130