Telecom-Band Quantum Interference of Frequency-Converted Photons from Remote Detuned NV Centers

Entanglement distribution over quantum networks has the promise of realizing fundamentally new technologies. Entanglement between separated quantum processing nodes has been achieved on several experimental platforms in the past decade. To move toward metropolitan-scale quantum network test beds, th...
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Autor*in:	A.J. Stolk [verfasserIn] K.L. van der Enden [verfasserIn] M.-C. Roehsner [verfasserIn] A. Teepe [verfasserIn] S.O.J. Faes [verfasserIn] C.E. Bradley [verfasserIn] S. Cadot [verfasserIn] J. van Rantwijk [verfasserIn] I. te Raa [verfasserIn] R.A.J. Hagen [verfasserIn] A.L. Verlaan [verfasserIn] J.J.B. Biemond [verfasserIn] A. Khorev [verfasserIn] R. Vollmer [verfasserIn] M. Markham [verfasserIn] A.M. Edmonds [verfasserIn] J.P.J. Morits [verfasserIn] T.H. Taminiau [verfasserIn] E.J. van Zwet [verfasserIn] R. Hanson [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Übergeordnetes Werk:	In: PRX Quantum - American Physical Society, 2021, 3(2022), 2, p 020359
Übergeordnetes Werk:	volume:3 ; year:2022 ; number:2, p 020359

Links:	Link aufrufen Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1103/PRXQuantum.3.020359

Katalog-ID:	DOAJ020337221

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abstract	Entanglement distribution over quantum networks has the promise of realizing fundamentally new technologies. Entanglement between separated quantum processing nodes has been achieved on several experimental platforms in the past decade. To move toward metropolitan-scale quantum network test beds, the creation and transmission of indistinguishable single photons over existing telecom infrastructure is key. Here, we report the interference of photons emitted by remote spectrally detuned NV-center-based network nodes, using quantum frequency conversion to the telecom L band. We find a visibility of 0.79±0.03 and an indistinguishability between converted NV photons around 0.9 over the full range of the emission duration, confirming the removal of the spectral information present. Our approach implements fully separated and independent control over the nodes, time multiplexing of control and quantum signals, and active feedback to stabilize the output frequency. Our results demonstrate a working principle that can be readily employed on other platforms and shows a clear path toward generating metropolitan-scale solid-state entanglement over deployed telecom fibers.
abstractGer	Entanglement distribution over quantum networks has the promise of realizing fundamentally new technologies. Entanglement between separated quantum processing nodes has been achieved on several experimental platforms in the past decade. To move toward metropolitan-scale quantum network test beds, the creation and transmission of indistinguishable single photons over existing telecom infrastructure is key. Here, we report the interference of photons emitted by remote spectrally detuned NV-center-based network nodes, using quantum frequency conversion to the telecom L band. We find a visibility of 0.79±0.03 and an indistinguishability between converted NV photons around 0.9 over the full range of the emission duration, confirming the removal of the spectral information present. Our approach implements fully separated and independent control over the nodes, time multiplexing of control and quantum signals, and active feedback to stabilize the output frequency. Our results demonstrate a working principle that can be readily employed on other platforms and shows a clear path toward generating metropolitan-scale solid-state entanglement over deployed telecom fibers.
abstract_unstemmed	Entanglement distribution over quantum networks has the promise of realizing fundamentally new technologies. Entanglement between separated quantum processing nodes has been achieved on several experimental platforms in the past decade. To move toward metropolitan-scale quantum network test beds, the creation and transmission of indistinguishable single photons over existing telecom infrastructure is key. Here, we report the interference of photons emitted by remote spectrally detuned NV-center-based network nodes, using quantum frequency conversion to the telecom L band. We find a visibility of 0.79±0.03 and an indistinguishability between converted NV photons around 0.9 over the full range of the emission duration, confirming the removal of the spectral information present. Our approach implements fully separated and independent control over the nodes, time multiplexing of control and quantum signals, and active feedback to stabilize the output frequency. Our results demonstrate a working principle that can be readily employed on other platforms and shows a clear path toward generating metropolitan-scale solid-state entanglement over deployed telecom fibers.
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author2Str	K.L. van der Enden M.-C. Roehsner A. Teepe S.O.J. Faes C.E. Bradley S. Cadot J. van Rantwijk I. te Raa R.A.J. Hagen A.L. Verlaan J.J.B. Biemond A. Khorev R. Vollmer M. Markham A.M. Edmonds J.P.J. Morits T.H. Taminiau E.J. van Zwet R. Hanson
ppnlink	1757559825
callnumber-subject	QC - Physics
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isOA_txt	true
hochschulschrift_bool	false
doi_str	10.1103/PRXQuantum.3.020359
callnumber-a	QC1-999
up_date	2024-07-03T14:22:11.426Z
_version_	1803568054462840832
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Telecom-Band Quantum Interference of Frequency-Converted Photons from Remote Detuned NV Centers

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