Bruns, Alexander ; Hsu, Chia-Yu ; Stryzhenko, Sergiy ; Giese, Enno ; Yatsenko, Leonid P. ; Yu, Ite A. ; Halfmann, Thomas ; Peters, Thorsten (2022)
Ultrabright and narrowband intra-fiber biphoton source at ultralow pump power.
In: Quantum Science & Technology, 2022, 8 (1)
doi: 10.26083/tuprints-00022824
Artikel, Zweitveröffentlichung, Verlagsversion
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Kurzbeschreibung (Abstract)
Nonclassical photon sources of high brightness are key components of quantum communication technologies. We here demonstrate the generation of narrowband, nonclassical photon pairs by employing spontaneous four-wave mixing in an optically-dense ensemble of cold atoms within a hollow-core fiber. The brightness of our source approaches the limit of achievable generated spectral brightness at which successive photon pairs start to overlap in time. For a generated spectral brightness per pump power of up to 2 × 10⁹ pairs/(s MHz mW) we observe nonclassical correlations at pump powers below 100 nW and a narrow bandwidth of 2π × 6.5 MHz. In this regime we demonstrate that our source can be used as a heralded single-photon source. By further increasing the brightness we enter the regime where successive photon pairs start to overlap in time and the cross-correlation approaches a limit corresponding to thermal statistics. Our approach of combining the advantages of atomic ensembles and waveguide environments is an important step toward photonic quantum networks of ensemble-based elements.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Bruns, Alexander ; Hsu, Chia-Yu ; Stryzhenko, Sergiy ; Giese, Enno ; Yatsenko, Leonid P. ; Yu, Ite A. ; Halfmann, Thomas ; Peters, Thorsten |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Ultrabright and narrowband intra-fiber biphoton source at ultralow pump power |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Ort: | Darmstadt |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Quantum Science & Technology |
| Jahrgang/Volume einer Zeitschrift: | 8 |
| (Heft-)Nummer: | 1 |
| Kollation: | 12 Seiten |
| DOI: | 10.26083/tuprints-00022824 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/22824 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung DeepGreen |
| Kurzbeschreibung (Abstract): | Nonclassical photon sources of high brightness are key components of quantum communication technologies. We here demonstrate the generation of narrowband, nonclassical photon pairs by employing spontaneous four-wave mixing in an optically-dense ensemble of cold atoms within a hollow-core fiber. The brightness of our source approaches the limit of achievable generated spectral brightness at which successive photon pairs start to overlap in time. For a generated spectral brightness per pump power of up to 2 × 10⁹ pairs/(s MHz mW) we observe nonclassical correlations at pump powers below 100 nW and a narrow bandwidth of 2π × 6.5 MHz. In this regime we demonstrate that our source can be used as a heralded single-photon source. By further increasing the brightness we enter the regime where successive photon pairs start to overlap in time and the cross-correlation approaches a limit corresponding to thermal statistics. Our approach of combining the advantages of atomic ensembles and waveguide environments is an important step toward photonic quantum networks of ensemble-based elements. |
| Freie Schlagworte: | photon pair sources, single photon sources, hollow core fiber, cold atoms, quantum technology, quantum communication |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-228244 |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Angewandte Physik |
| Hinterlegungsdatum: | 04 Nov 2022 12:04 |
| Letzte Änderung: | 07 Nov 2022 14:53 |
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| Suche nach Titel in: | TUfind oder in Google |
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- Ultrabright and narrowband intra-fiber biphoton source at ultralow pump power. (deposited 04 Nov 2022 12:04) [Gegenwärtig angezeigt]
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