Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution
This study presents a closed-form expression that characterizes the output state of a continuous variable quantum key distribution protocol in the presence of both ideal and realistic two photon quantum scissor. Using non-Gaussian computations, we discovered that the ideal quantum scissor improves e...
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| Language: | English |
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Elsevier
2025-02-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379725000063 |
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| author | Amene Shafiee Mojtaba Golshani Mostafa Motamedifar |
| author_facet | Amene Shafiee Mojtaba Golshani Mostafa Motamedifar |
| author_sort | Amene Shafiee |
| collection | DOAJ |
| description | This study presents a closed-form expression that characterizes the output state of a continuous variable quantum key distribution protocol in the presence of both ideal and realistic two photon quantum scissor. Using non-Gaussian computations, we discovered that the ideal quantum scissor improves entanglement between Alice and Bob, even when they are separated by large distances. As a result, the addition of quantum scissors broadens the range of continuous variable quantum key distribution protocols. Additionally, non-ideal quantum scissors’ efficiency becomes more significant as the modulation variance of the input state increases. Finally, keep in mind that the benefits of these changes tend to reduce in noisy channels, when the system is inspected under varied amounts of excess noise. |
| format | Article |
| id | doaj-art-e2b1481742ea4f4099386fed7857f0ef |
| institution | DOAJ |
| issn | 2211-3797 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj-art-e2b1481742ea4f4099386fed7857f0ef2025-08-20T03:01:07ZengElsevierResults in Physics2211-37972025-02-016910811210.1016/j.rinp.2025.108112Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distributionAmene Shafiee0Mojtaba Golshani1Mostafa Motamedifar2Department of interdisciplinary Physics and Technology, Faculty of science and Advance Technology, Shahid Bahonar University of Kerman, Kerman, 7616913439, IranDepartment of interdisciplinary Physics and Technology, Faculty of science and Advance Technology, Shahid Bahonar University of Kerman, Kerman, 7616913439, Iran; Corresponding author.Department of Physics, Faculty of science and Advance Technology, Shahid Bahonar University of Kerman, Kerman, 7616913439, IranThis study presents a closed-form expression that characterizes the output state of a continuous variable quantum key distribution protocol in the presence of both ideal and realistic two photon quantum scissor. Using non-Gaussian computations, we discovered that the ideal quantum scissor improves entanglement between Alice and Bob, even when they are separated by large distances. As a result, the addition of quantum scissors broadens the range of continuous variable quantum key distribution protocols. Additionally, non-ideal quantum scissors’ efficiency becomes more significant as the modulation variance of the input state increases. Finally, keep in mind that the benefits of these changes tend to reduce in noisy channels, when the system is inspected under varied amounts of excess noise.http://www.sciencedirect.com/science/article/pii/S2211379725000063Continuous variable quantum key distributionTwo-photon quantum scissorNon-ideal detectorExcess noise |
| spellingShingle | Amene Shafiee Mojtaba Golshani Mostafa Motamedifar Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution Results in Physics Continuous variable quantum key distribution Two-photon quantum scissor Non-ideal detector Excess noise |
| title | Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution |
| title_full | Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution |
| title_fullStr | Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution |
| title_full_unstemmed | Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution |
| title_short | Optimizing two-photon quantum scissor with imperfect detectors for continuous variable quantum key distribution |
| title_sort | optimizing two photon quantum scissor with imperfect detectors for continuous variable quantum key distribution |
| topic | Continuous variable quantum key distribution Two-photon quantum scissor Non-ideal detector Excess noise |
| url | http://www.sciencedirect.com/science/article/pii/S2211379725000063 |
| work_keys_str_mv | AT ameneshafiee optimizingtwophotonquantumscissorwithimperfectdetectorsforcontinuousvariablequantumkeydistribution AT mojtabagolshani optimizingtwophotonquantumscissorwithimperfectdetectorsforcontinuousvariablequantumkeydistribution AT mostafamotamedifar optimizingtwophotonquantumscissorwithimperfectdetectorsforcontinuousvariablequantumkeydistribution |