Academic Journal
Telecom-Band Quantum Interference of Frequency-Converted Photons from Remote Detuned NV Centers
| العنوان: | Telecom-Band Quantum Interference of Frequency-Converted Photons from Remote Detuned NV Centers |
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| المؤلفون: | A.J. Stolk, 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 |
| المصدر: | PRX Quantum, Vol 3, Iss 2, p 020359 (2022) |
| بيانات النشر: | American Physical Society |
| سنة النشر: | 2022 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | Physics, QC1-999, Computer software, QA76.75-76.765 |
| الوصف: | 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. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2691-3399 |
| Relation: | http://doi.org/10.1103/PRXQuantum.3.020359; https://doaj.org/toc/2691-3399; https://doaj.org/article/75eaab8447d54fdf982220fd8639a04f |
| DOI: | 10.1103/PRXQuantum.3.020359 |
| الاتاحة: | https://doi.org/10.1103/PRXQuantum.3.020359 https://doaj.org/article/75eaab8447d54fdf982220fd8639a04f |
| رقم الانضمام: | edsbas.7DD34E21 |
| قاعدة البيانات: | BASE |
| تدمد: | 26913399 |
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| DOI: | 10.1103/PRXQuantum.3.020359 |