J 2020

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

HU, Xiao-Min, WB. XING, C. ZHANG, BH. LIU, Matej PIVOLUSKA et. al.

Basic information

Original name

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

Authors

HU, Xiao-Min, WB. XING, C. ZHANG, BH. LIU, Matej PIVOLUSKA (703 Slovakia, belonging to the institution), M. HUBER, YF. HUANG, CF. LI and GC. GUO

Edition

NPJ QUANTUM INFORMATION, BERLIN, NATURE RESEARCH, 2020, 2056-6387

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10306 Optics

Country of publisher

Germany

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 7.385

RIV identification code

RIV/00216224:14610/20:00114454

Organization unit

Institute of Computer Science

UT WoS

000580565400001

Keywords in English

layered quantum key distribution; quantum optics

Tags

Tags

International impact, Reviewed
Změněno: 26/3/2021 14:57, RNDr. Matej Pivoluska, Ph.D.

Abstract

V originále

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 > = 1/2(vertical bar 000 >+vertical bar 110 >+vertical bar 221 >+vertical bar 331 >) 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.

Links

GF17-33780L, research and development project
Name: Vícečásticové kvantové provázání a bezpečnost (Acronym: MultiQUEST)
Investor: Czech Science Foundation, Multipartite QUantum Entanglement and SecuriTy, Partner Agency (Austria)