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| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2208.07794 |
| Etiquetas: |
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| _version_ | 1866915128340905984 |
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| author | Liu, Zheng-Hao Meng, Yu Wu, Yu-Ze Hao, Ze-Yan Xu, Zhen-Peng Ai, Cheng-Jun Wei, Hai Wen, Kai Chen, Jing-Ling Ma, Jie Xu, Jin-Shi Li, Chuan-Feng Guo, Guang-Can |
| author_facet | Liu, Zheng-Hao Meng, Yu Wu, Yu-Ze Hao, Ze-Yan Xu, Zhen-Peng Ai, Cheng-Jun Wei, Hai Wen, Kai Chen, Jing-Ling Ma, Jie Xu, Jin-Shi Li, Chuan-Feng Guo, Guang-Can |
| contents | Contextuality is a hallmark feature of the quantum theory that captures its incompatibility with any noncontextual hidden-variable model. The Greenberger--Horne--Zeilinger (GHZ)-type paradoxes are proofs of contextuality that reveal this incompatibility with deterministic logical arguments. However, the GHZ-type paradox whose events can be included in the fewest contexts and which brings the strongest nonclassicality remains elusive. Here, we derive a GHZ-type paradox with a context-cover number of three and show this number saturates the lower bound posed by quantum theory. We demonstrate the paradox with a time-domain fiber optical platform and recover the quantum prediction in a 37-dimensional setup based on high-speed modulation, convolution, and homodyne detection of time-multiplexed pulsed coherent light. By proposing and studying a strong form of contextuality in high-dimensional Hilbert space, our results pave the way for the exploration of exotic quantum correlations with time-multiplexed optical systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2208_07794 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Exploring the boundary of quantum correlations with a time-domain optical processor Liu, Zheng-Hao Meng, Yu Wu, Yu-Ze Hao, Ze-Yan Xu, Zhen-Peng Ai, Cheng-Jun Wei, Hai Wen, Kai Chen, Jing-Ling Ma, Jie Xu, Jin-Shi Li, Chuan-Feng Guo, Guang-Can Quantum Physics Optics Contextuality is a hallmark feature of the quantum theory that captures its incompatibility with any noncontextual hidden-variable model. The Greenberger--Horne--Zeilinger (GHZ)-type paradoxes are proofs of contextuality that reveal this incompatibility with deterministic logical arguments. However, the GHZ-type paradox whose events can be included in the fewest contexts and which brings the strongest nonclassicality remains elusive. Here, we derive a GHZ-type paradox with a context-cover number of three and show this number saturates the lower bound posed by quantum theory. We demonstrate the paradox with a time-domain fiber optical platform and recover the quantum prediction in a 37-dimensional setup based on high-speed modulation, convolution, and homodyne detection of time-multiplexed pulsed coherent light. By proposing and studying a strong form of contextuality in high-dimensional Hilbert space, our results pave the way for the exploration of exotic quantum correlations with time-multiplexed optical systems. |
| title | Exploring the boundary of quantum correlations with a time-domain optical processor |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2208.07794 |