Bright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperature
Narrowband single photons that couple well to atomic ensembles could prove essential for future quantum networks, but the efficient generation of such photons remains an outstanding challenge. We realize a spatially-multiplexed heralded source of single photons that are inherently compatible with th...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2021-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ac14ab |
| _version_ | 1797750106862125056 |
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| author | O Davidson R Finkelstein E Poem O Firstenberg |
| author_facet | O Davidson R Finkelstein E Poem O Firstenberg |
| author_sort | O Davidson |
| collection | DOAJ |
| description | Narrowband single photons that couple well to atomic ensembles could prove essential for future quantum networks, but the efficient generation of such photons remains an outstanding challenge. We realize a spatially-multiplexed heralded source of single photons that are inherently compatible with the commonly employed D2 line of rubidium. Our source is based on four-wave mixing in hot rubidium vapor, requiring no laser cooling or optical cavities, and generates single photons with high rate and low noise. We use Hong–Ou–Mandel interference to verify the indistinguishability of the photons generated in two different (multiplexed) channels. We further demonstrate a five-fold tunability of the photons’ temporal width. The experimental results are well reproduced by a theoretical model. |
| first_indexed | 2024-03-12T16:28:52Z |
| format | Article |
| id | doaj.art-d483a564ed0f4094b4798535a7a4ca67 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:28:52Z |
| publishDate | 2021-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-d483a564ed0f4094b4798535a7a4ca672023-08-08T15:37:19ZengIOP PublishingNew Journal of Physics1367-26302021-01-0123707305010.1088/1367-2630/ac14abBright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperatureO Davidson0R Finkelstein1https://orcid.org/0000-0002-4524-5875E Poem2O Firstenberg3https://orcid.org/0000-0001-8905-9954Physics of Complex Systems, Weizmann Institute of Science , Rehovot 7610001, IsraelPhysics of Complex Systems, Weizmann Institute of Science , Rehovot 7610001, IsraelPhysics of Complex Systems, Weizmann Institute of Science , Rehovot 7610001, IsraelPhysics of Complex Systems, Weizmann Institute of Science , Rehovot 7610001, IsraelNarrowband single photons that couple well to atomic ensembles could prove essential for future quantum networks, but the efficient generation of such photons remains an outstanding challenge. We realize a spatially-multiplexed heralded source of single photons that are inherently compatible with the commonly employed D2 line of rubidium. Our source is based on four-wave mixing in hot rubidium vapor, requiring no laser cooling or optical cavities, and generates single photons with high rate and low noise. We use Hong–Ou–Mandel interference to verify the indistinguishability of the photons generated in two different (multiplexed) channels. We further demonstrate a five-fold tunability of the photons’ temporal width. The experimental results are well reproduced by a theoretical model.https://doi.org/10.1088/1367-2630/ac14absingle-photon sourceatomic vaporfour-wave mixing |
| spellingShingle | O Davidson R Finkelstein E Poem O Firstenberg Bright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperature New Journal of Physics single-photon source atomic vapor four-wave mixing |
| title | Bright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperature |
| title_full | Bright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperature |
| title_fullStr | Bright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperature |
| title_full_unstemmed | Bright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperature |
| title_short | Bright multiplexed source of indistinguishable single photons with tunable GHz-bandwidth at room temperature |
| title_sort | bright multiplexed source of indistinguishable single photons with tunable ghz bandwidth at room temperature |
| topic | single-photon source atomic vapor four-wave mixing |
| url | https://doi.org/10.1088/1367-2630/ac14ab |
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