Dual opposing quadrature-PT symmetry
Summary: Our recent research on type-I quadrature parity-time (PT) symmetry, utilizing an open twin-beam system, not only enables observing genuine quantum photonic PT symmetry amid phase-sensitive amplification (PSA) and loss in the presence of Langevin noise but also reveals an additional classica...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004224028827 |
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| author | Wencong Wang Jacob Kokinda Jiazhen Li Qing Gu Dongmei Liu Jianming Wen |
| author_facet | Wencong Wang Jacob Kokinda Jiazhen Li Qing Gu Dongmei Liu Jianming Wen |
| author_sort | Wencong Wang |
| collection | DOAJ |
| description | Summary: Our recent research on type-I quadrature parity-time (PT) symmetry, utilizing an open twin-beam system, not only enables observing genuine quantum photonic PT symmetry amid phase-sensitive amplification (PSA) and loss in the presence of Langevin noise but also reveals an additional classical-to-quantum (C2Q) transition in noise fluctuations. In contrast to the previous setup, our exploration of an alternative system assuming no loss involves a type-II PSA-only scheme. This scheme facilitates dual opposing quadrature-PT symmetry, offering a comprehensive and complementary comprehension of C2Q transitions and PT-enhanced quantum sensing with optimal performance in the symmetry unbroken region. Furthermore, our investigation into the quantum correlation with the Einstein-Podolsky-Rosen criteria uncovers previously unexplored connections between PT symmetry and nonclassicality, as well as quantum entanglement within the continuous-variable framework. |
| format | Article |
| id | doaj-art-8271b1b38c6d4024ad1eb9f1ed8aba7b |
| institution | Kabale University |
| issn | 2589-0042 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj-art-8271b1b38c6d4024ad1eb9f1ed8aba7b2025-01-08T04:53:18ZengElsevieriScience2589-00422025-01-01281111655Dual opposing quadrature-PT symmetryWencong Wang0Jacob Kokinda1Jiazhen Li2Qing Gu3Dongmei Liu4Jianming Wen5Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, ChinaDepartment of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC 27695, USADepartment of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC 27695, USADepartment of Electrical and Computer Engineering, North Carolina State University, Raleigh, NC 27695, USA; Department of Physics, North Carolina State University, Raleigh, NC 27695, USAGuangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China; Corresponding authorDepartment of Electrical and Computering Engineering, Binghamton University, Binghamton, NY 13902, USA; Corresponding authorSummary: Our recent research on type-I quadrature parity-time (PT) symmetry, utilizing an open twin-beam system, not only enables observing genuine quantum photonic PT symmetry amid phase-sensitive amplification (PSA) and loss in the presence of Langevin noise but also reveals an additional classical-to-quantum (C2Q) transition in noise fluctuations. In contrast to the previous setup, our exploration of an alternative system assuming no loss involves a type-II PSA-only scheme. This scheme facilitates dual opposing quadrature-PT symmetry, offering a comprehensive and complementary comprehension of C2Q transitions and PT-enhanced quantum sensing with optimal performance in the symmetry unbroken region. Furthermore, our investigation into the quantum correlation with the Einstein-Podolsky-Rosen criteria uncovers previously unexplored connections between PT symmetry and nonclassicality, as well as quantum entanglement within the continuous-variable framework.http://www.sciencedirect.com/science/article/pii/S2589004224028827Natural sciencesPhysicsQuantum physics |
| spellingShingle | Wencong Wang Jacob Kokinda Jiazhen Li Qing Gu Dongmei Liu Jianming Wen Dual opposing quadrature-PT symmetry iScience Natural sciences Physics Quantum physics |
| title | Dual opposing quadrature-PT symmetry |
| title_full | Dual opposing quadrature-PT symmetry |
| title_fullStr | Dual opposing quadrature-PT symmetry |
| title_full_unstemmed | Dual opposing quadrature-PT symmetry |
| title_short | Dual opposing quadrature-PT symmetry |
| title_sort | dual opposing quadrature pt symmetry |
| topic | Natural sciences Physics Quantum physics |
| url | http://www.sciencedirect.com/science/article/pii/S2589004224028827 |
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