Programmable quantum circuits in a large-scale photonic waveguide array
Abstract Over the past decade, integrated quantum photonic technologies have shown great potential as a platform for studying quantum phenomena and realizing large-scale quantum information processing. Recently, there have been proposals for utilizing waveguide lattices to implement quantum gates, p...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-02-01
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| Series: | npj Quantum Information |
| Online Access: | https://doi.org/10.1038/s41534-024-00934-6 |
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| _version_ | 1823861744001351680 |
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| author | Yang Yang Robert J. Chapman Akram Youssry Ben Haylock Francesco Lenzini Mirko Lobino Alberto Peruzzo |
| author_facet | Yang Yang Robert J. Chapman Akram Youssry Ben Haylock Francesco Lenzini Mirko Lobino Alberto Peruzzo |
| author_sort | Yang Yang |
| collection | DOAJ |
| description | Abstract Over the past decade, integrated quantum photonic technologies have shown great potential as a platform for studying quantum phenomena and realizing large-scale quantum information processing. Recently, there have been proposals for utilizing waveguide lattices to implement quantum gates, providing a more compact and robust solution compared to discrete implementation with directional couplers and phase shifters. We report on the first demonstration of precise control of single photon states on an 11-dimensional continuously-coupled programmable waveguide array. Through electro-optical control, the array is subdivided into decoupled subcircuits and the degree of on-chip quantum interference can be tuned with a maximum visibility of 0.962 ± 0.013. Furthermore, we show simultaneous control of two subcircuits on a single device. Our results demonstrate the potential of using this technology as a building block for quantum information processing applications. |
| format | Article |
| id | doaj-art-913a7a3a3c464b9fac5a3e8373c84824 |
| institution | Kabale University |
| issn | 2056-6387 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Information |
| spelling | doaj-art-913a7a3a3c464b9fac5a3e8373c848242025-02-09T12:49:01ZengNature Portfolionpj Quantum Information2056-63872025-02-011111810.1038/s41534-024-00934-6Programmable quantum circuits in a large-scale photonic waveguide arrayYang Yang0Robert J. Chapman1Akram Youssry2Ben Haylock3Francesco Lenzini4Mirko Lobino5Alberto Peruzzo6Quantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityQuantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityQuantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityCentre for Quantum Computation and Communication Technology (Australian Research Council), Centre for Quantum Dynamics, Griffith UniversityCentre for Quantum Computation and Communication Technology (Australian Research Council), Centre for Quantum Dynamics, Griffith UniversityCentre for Quantum Computation and Communication Technology (Australian Research Council), Centre for Quantum Dynamics, Griffith UniversityQuantum Photonics Laboratory and Centre for Quantum Computation and Communication Technology, RMIT UniversityAbstract Over the past decade, integrated quantum photonic technologies have shown great potential as a platform for studying quantum phenomena and realizing large-scale quantum information processing. Recently, there have been proposals for utilizing waveguide lattices to implement quantum gates, providing a more compact and robust solution compared to discrete implementation with directional couplers and phase shifters. We report on the first demonstration of precise control of single photon states on an 11-dimensional continuously-coupled programmable waveguide array. Through electro-optical control, the array is subdivided into decoupled subcircuits and the degree of on-chip quantum interference can be tuned with a maximum visibility of 0.962 ± 0.013. Furthermore, we show simultaneous control of two subcircuits on a single device. Our results demonstrate the potential of using this technology as a building block for quantum information processing applications.https://doi.org/10.1038/s41534-024-00934-6 |
| spellingShingle | Yang Yang Robert J. Chapman Akram Youssry Ben Haylock Francesco Lenzini Mirko Lobino Alberto Peruzzo Programmable quantum circuits in a large-scale photonic waveguide array npj Quantum Information |
| title | Programmable quantum circuits in a large-scale photonic waveguide array |
| title_full | Programmable quantum circuits in a large-scale photonic waveguide array |
| title_fullStr | Programmable quantum circuits in a large-scale photonic waveguide array |
| title_full_unstemmed | Programmable quantum circuits in a large-scale photonic waveguide array |
| title_short | Programmable quantum circuits in a large-scale photonic waveguide array |
| title_sort | programmable quantum circuits in a large scale photonic waveguide array |
| url | https://doi.org/10.1038/s41534-024-00934-6 |
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