Non-Gaussian-state generation with time-gated photon detection
Non-Gaussian states of light, which are essential in fault-tolerant and universal optical quantum computation, are typically generated by a heralding scheme using photon detectors. Recently, it has been theoretically shown that the large timing jitter of the photon detectors deteriorates the purity...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-09-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.033156 |
| _version_ | 1797210367553699840 |
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| author | Tatsuki Sonoyama Kazuma Takahashi Baramee Charoensombutamon Sachiko Takasu Kaori Hattori Daiji Fukuda Kosuke Fukui Kan Takase Warit Asavanant Jun-ichi Yoshikawa Mamoru Endo Akira Furusawa |
| author_facet | Tatsuki Sonoyama Kazuma Takahashi Baramee Charoensombutamon Sachiko Takasu Kaori Hattori Daiji Fukuda Kosuke Fukui Kan Takase Warit Asavanant Jun-ichi Yoshikawa Mamoru Endo Akira Furusawa |
| author_sort | Tatsuki Sonoyama |
| collection | DOAJ |
| description | Non-Gaussian states of light, which are essential in fault-tolerant and universal optical quantum computation, are typically generated by a heralding scheme using photon detectors. Recently, it has been theoretically shown that the large timing jitter of the photon detectors deteriorates the purity of the generated non-Gaussian states [T. Sonoyama et al., Phys. Rev. A 105, 043714 (2022)2469-992610.1103/PhysRevA.105.043714]. Here, we circumvent this problem by time-gated photon detection and generate non-Gaussian states with Wigner negativity using continuous-wave light. We use a fast optical switch for time gating to effectively improve the timing jitter of a photon-number-resolving detector based on a transition edge sensor from 50 ns to 10 ns. As a result, we generate non-Gaussian states with Wigner negativity of −0.011±0.004 (ℏ=1), which cannot be observed without the time-gated photon detection method. These results confirm the effect of the timing jitter on non-Gaussian state generation experimentally for the first time. The proposed time-gated photon detection method would be useful for high-purity non-Gaussian state preparation in optical quantum information processing. |
| first_indexed | 2024-04-24T10:09:28Z |
| format | Article |
| id | doaj.art-42144b8594fe4d2183aae20c20b4613d |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:09:28Z |
| publishDate | 2023-09-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-42144b8594fe4d2183aae20c20b4613d2024-04-12T17:33:47ZengAmerican Physical SocietyPhysical Review Research2643-15642023-09-015303315610.1103/PhysRevResearch.5.033156Non-Gaussian-state generation with time-gated photon detectionTatsuki SonoyamaKazuma TakahashiBaramee CharoensombutamonSachiko TakasuKaori HattoriDaiji FukudaKosuke FukuiKan TakaseWarit AsavanantJun-ichi YoshikawaMamoru EndoAkira FurusawaNon-Gaussian states of light, which are essential in fault-tolerant and universal optical quantum computation, are typically generated by a heralding scheme using photon detectors. Recently, it has been theoretically shown that the large timing jitter of the photon detectors deteriorates the purity of the generated non-Gaussian states [T. Sonoyama et al., Phys. Rev. A 105, 043714 (2022)2469-992610.1103/PhysRevA.105.043714]. Here, we circumvent this problem by time-gated photon detection and generate non-Gaussian states with Wigner negativity using continuous-wave light. We use a fast optical switch for time gating to effectively improve the timing jitter of a photon-number-resolving detector based on a transition edge sensor from 50 ns to 10 ns. As a result, we generate non-Gaussian states with Wigner negativity of −0.011±0.004 (ℏ=1), which cannot be observed without the time-gated photon detection method. These results confirm the effect of the timing jitter on non-Gaussian state generation experimentally for the first time. The proposed time-gated photon detection method would be useful for high-purity non-Gaussian state preparation in optical quantum information processing.http://doi.org/10.1103/PhysRevResearch.5.033156 |
| spellingShingle | Tatsuki Sonoyama Kazuma Takahashi Baramee Charoensombutamon Sachiko Takasu Kaori Hattori Daiji Fukuda Kosuke Fukui Kan Takase Warit Asavanant Jun-ichi Yoshikawa Mamoru Endo Akira Furusawa Non-Gaussian-state generation with time-gated photon detection Physical Review Research |
| title | Non-Gaussian-state generation with time-gated photon detection |
| title_full | Non-Gaussian-state generation with time-gated photon detection |
| title_fullStr | Non-Gaussian-state generation with time-gated photon detection |
| title_full_unstemmed | Non-Gaussian-state generation with time-gated photon detection |
| title_short | Non-Gaussian-state generation with time-gated photon detection |
| title_sort | non gaussian state generation with time gated photon detection |
| url | http://doi.org/10.1103/PhysRevResearch.5.033156 |
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