Optical scheme to demonstrate state-independent quantum contextuality |
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Affiliation: | 1.Department of Physics, Southeast University, Nanjing 211189, China;2.Beijing Computational Science Research Center, Beijing 100084, China;3.School of Physics and Materials Science, Anhui University, Hefei 230601, China;4.School of Science, Nanjing University of Science and Technology, Nanjing 210094, China;5.MIIT Key Laboratory of Semiconductor Microstructure and Quantum Sensing, Nanjing University of Science and Technology, Nanjing 210094, China |
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Abstract: | The contradiction between classical and quantum physics can be identified through quantum contextuality, which does not need composite systems or spacelike separation. Contextuality is proven either by a logical contradiction between the noncontextuality hidden variable predictions and those of quantum mechanics or by the violation of noncontextual inequality. We propose an experimental scheme of state-independent contextual inequality derived from the Mermin proof of the Kochen-Specker (KS) theorem in eight-dimensional Hilbert space, which could be observed either in an individual system or in a composite system. We also show how to resolve the compatibility problems. Our scheme can be implemented in optical systems with current experiment techniques. |
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Keywords: | state-independent quantum contextuality optical systems |
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