Metropolitan-scale heralded entanglement of solid-state qubits

被引：26

作者：

Stolk, Arian J. ^{[1
,2
]}

van der Enden, Kian L. ^{[1
,2
]}

Slater, Marie-Christine ^{[1
,2
,8
]}

te Raa-Derckx, Ingmar ^{[1
,2
]}

Botma, Pieter ^{[1
,2
]}

van Rantwijk, Joris ^{[1
,2
]}

Biemond, J. J. Benjamin ^{[1
,2
,3
]}

Hagen, Ronald A. J. ^{[1
,2
,3
]}

Herfst, Rodolf W. ^{[1
,2
,3
]}

Koek, Wouter D. ^{[1
,2
,3
]}

Meskers, Adrianus J. H. ^{[1
,2
,3
]}

Vollmer, Rene ^{[1
,2
,3
]}

van Zwet, Erwin J. ^{[1
,2
,3
]}

Markham, Matthew ^{[4
]}

Edmonds, Andrew M. ^{[4
]}

Geus, J. Fabian ^{[5
,6
]}

Elsen, Florian ^{[5
,6
]}

Jungbluth, Bernd ^{[5
]}

Haefner, Constantin ^{[5
,6
]}

Tresp, Christoph ^{[7
]}

Stuhler, Juergen ^{[7
]}

Ritter, Stephan ^{[7
]}

Hanson, Ronald ^{[1
,2
]}

机构：

[1] Delft Univ Technol, QuTech, NL-2628 CJ Delft, Netherlands

[2] Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands

[3] Netherlands Org Appl Sci Res TNO, POB 155, NL-2600 AD Delft, Netherlands

[4] Element Six Innovat, Fermi Ave, Didcot OX11 0QR, Oxon, England

[5] Fraunhofer Inst Laser Technol ILT, D-52074 Aachen, Germany

[6] Rhein Westfal TH Aachen, D-52074 Aachen, Germany

[7] TOPTICA Photon AG, Lochhamer Schlag 19, D-82166 Graefelfing, Germany

[8] AIT Austrian Inst Technol Gmbh, Giefinggasse 4, A-1210 Vienna, Austria

来源：

SCIENCE ADVANCES | 2024年 / 10卷 / 44期

基金：

荷兰研究理事会;

关键词：

QUANTUM NETWORK; SINGLE ATOMS; TELEPORTATION; CREATION; NODES;

D O I：

10.1126/sciadv.adp6442

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A key challenge toward future quantum internet technology is connecting quantum processors at metropolitan scale. Here, we report on heralded entanglement between two independently operated quantum network nodes separated by 10 kilometers. The two nodes hosting diamond spin qubits are linked with a midpoint station via 25 kilometers of deployed optical fiber. We minimize the effects of fiber photon loss by quantum frequency conversion of the qubit-native photons to the telecom L-band and by embedding the link in an extensible phase-stabilized architecture enabling the use of the loss-resilient single-click entangling protocol. By capitalizing on the full heralding capabilities of the network link in combination with real-time feedback logic on the long-lived qubits, we demonstrate the delivery of a predefined entangled state on the nodes irrespective of the heralding detection pattern. Addressing key scaling challenges and being compatible with different qubit systems, our architecture establishes a generic platform for exploring metropolitan-scale quantum networks.

引用

页数：9

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