Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors
The experimental characterization of multi-photon quantum interference effects in optical networks is essential in many applications of photonic quantum technologies, which include quantum computing and quantum communication as two prominent examples. However, such characterization often requires te...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2018-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aab746 |
| _version_ | 1797750741605023744 |
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| author | Álvaro Navarrete Wenyuan Wang Feihu Xu Marcos Curty |
| author_facet | Álvaro Navarrete Wenyuan Wang Feihu Xu Marcos Curty |
| author_sort | Álvaro Navarrete |
| collection | DOAJ |
| description | The experimental characterization of multi-photon quantum interference effects in optical networks is essential in many applications of photonic quantum technologies, which include quantum computing and quantum communication as two prominent examples. However, such characterization often requires technologies which are beyond our current experimental capabilities, and today's methods suffer from errors due to the use of imperfect sources and photodetectors. In this paper, we introduce a simple experimental technique to characterize multi-photon quantum interference by means of practical laser sources and threshold single-photon detectors. Our technique is based on well-known methods in quantum cryptography which use decoy settings to tightly estimate the statistics provided by perfect devices. As an illustration of its practicality, we use this technique to obtain a tight estimation of both the generalized Hong−Ou−Mandel dip in a beamsplitter with six input photons and the three-photon coincidence probability at the output of a tritter. |
| first_indexed | 2024-03-12T16:37:14Z |
| format | Article |
| id | doaj.art-30e689c73df04051ad94d10cf1668662 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:37:14Z |
| publishDate | 2018-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-30e689c73df04051ad94d10cf16686622023-08-08T14:48:17ZengIOP PublishingNew Journal of Physics1367-26302018-01-0120404301810.1088/1367-2630/aab746Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectorsÁlvaro Navarrete0Wenyuan Wang1Feihu Xu2Marcos Curty3EI Telecomunicación, Department of Signal Theory and Communications, University of Vigo , Vigo E-36310, SpainCenter for Quantum Information and Quantum Control, Department of Physics and Department of Electrical & Computer Engineering, University of Toronto , Toronto, Ontario, M5S 3G4, CanadaNational Laboratory for Physical Sciences at Microscale, University of Science and Technology of China (Shanghai Brunch) , Hefei, Anhui 230026, People’s Republic of ChinaEI Telecomunicación, Department of Signal Theory and Communications, University of Vigo , Vigo E-36310, SpainThe experimental characterization of multi-photon quantum interference effects in optical networks is essential in many applications of photonic quantum technologies, which include quantum computing and quantum communication as two prominent examples. However, such characterization often requires technologies which are beyond our current experimental capabilities, and today's methods suffer from errors due to the use of imperfect sources and photodetectors. In this paper, we introduce a simple experimental technique to characterize multi-photon quantum interference by means of practical laser sources and threshold single-photon detectors. Our technique is based on well-known methods in quantum cryptography which use decoy settings to tightly estimate the statistics provided by perfect devices. As an illustration of its practicality, we use this technique to obtain a tight estimation of both the generalized Hong−Ou−Mandel dip in a beamsplitter with six input photons and the three-photon coincidence probability at the output of a tritter.https://doi.org/10.1088/1367-2630/aab746multi-photon interferenceHOM dipboson samplingquantum metrologydecoy-statedetector-decoy |
| spellingShingle | Álvaro Navarrete Wenyuan Wang Feihu Xu Marcos Curty Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors New Journal of Physics multi-photon interference HOM dip boson sampling quantum metrology decoy-state detector-decoy |
| title | Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors |
| title_full | Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors |
| title_fullStr | Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors |
| title_full_unstemmed | Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors |
| title_short | Characterizing multi-photon quantum interference with practical light sources and threshold single-photon detectors |
| title_sort | characterizing multi photon quantum interference with practical light sources and threshold single photon detectors |
| topic | multi-photon interference HOM dip boson sampling quantum metrology decoy-state detector-decoy |
| url | https://doi.org/10.1088/1367-2630/aab746 |
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