Optimal coherent filtering for single noisy photons
We introduce a filter using a noise-free quantum buffer with large optical bandwidth that can both filter temporal-spectral modes as well as interconvert them and change their frequency. We theoretically show that such quantum buffers optimally filter out temporal-spectral noise, producing identical...
| Main Authors: | , , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2019
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| _version_ | 1826280783590981632 |
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| author | Gao, S Lazo-Arjona, O Brecht, B Kaczmarek, KT Thomas, SE Nunn, J Ledingham, PM Saunders, DJ Walmsley, IA |
| author_facet | Gao, S Lazo-Arjona, O Brecht, B Kaczmarek, KT Thomas, SE Nunn, J Ledingham, PM Saunders, DJ Walmsley, IA |
| author_sort | Gao, S |
| collection | OXFORD |
| description | We introduce a filter using a noise-free quantum buffer with large optical bandwidth that can both filter temporal-spectral modes as well as interconvert them and change their frequency. We theoretically show that such quantum buffers optimally filter out temporal-spectral noise, producing identical single photons from many distinguishable noisy single-photon sources with the minimum required reduction in brightness. We then experimentally demonstrate a noise-free quantum buffer in a warm atomic system that is well matched to quantum dots. Based on these experiments, simulations show that our buffer can outperform all intensity (incoherent) filtering schemes for increasing indistinguishability. |
| first_indexed | 2024-03-07T00:18:54Z |
| format | Journal article |
| id | oxford-uuid:7bd4d625-514a-42cb-b477-4a576b8b0633 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:18:54Z |
| publishDate | 2019 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:7bd4d625-514a-42cb-b477-4a576b8b06332022-03-26T20:53:11ZOptimal coherent filtering for single noisy photonsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:7bd4d625-514a-42cb-b477-4a576b8b0633EnglishSymplectic Elements at OxfordAmerican Physical Society2019Gao, SLazo-Arjona, OBrecht, BKaczmarek, KTThomas, SENunn, JLedingham, PMSaunders, DJWalmsley, IAWe introduce a filter using a noise-free quantum buffer with large optical bandwidth that can both filter temporal-spectral modes as well as interconvert them and change their frequency. We theoretically show that such quantum buffers optimally filter out temporal-spectral noise, producing identical single photons from many distinguishable noisy single-photon sources with the minimum required reduction in brightness. We then experimentally demonstrate a noise-free quantum buffer in a warm atomic system that is well matched to quantum dots. Based on these experiments, simulations show that our buffer can outperform all intensity (incoherent) filtering schemes for increasing indistinguishability. |
| spellingShingle | Gao, S Lazo-Arjona, O Brecht, B Kaczmarek, KT Thomas, SE Nunn, J Ledingham, PM Saunders, DJ Walmsley, IA Optimal coherent filtering for single noisy photons |
| title | Optimal coherent filtering for single noisy photons |
| title_full | Optimal coherent filtering for single noisy photons |
| title_fullStr | Optimal coherent filtering for single noisy photons |
| title_full_unstemmed | Optimal coherent filtering for single noisy photons |
| title_short | Optimal coherent filtering for single noisy photons |
| title_sort | optimal coherent filtering for single noisy photons |
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