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| Format: | Preprint |
| Published: |
2025
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| Online Access: | https://arxiv.org/abs/2506.12101 |
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| _version_ | 1866915343102902272 |
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| author | Feng, Sheng |
| author_facet | Feng, Sheng |
| contents | Randomness is a ubiquitous phenomenon that is practically accompanied by physical events described by probability theory. However, probability by definition in the theory is a nonnegative scalar quantity. Here, we propose the concept of vectorial probability, quantified as a vector with interesting but hidden geometry, and develop a theory to describe random events with correlations dictated by this geometry. Based on this theory, we construct a local model that is able to reproduce the predictions of quantum mechanics about Bell's theorem. We discover that the particle detection events in Bell experiments exhibit the stochastic nature of four-dimensional probability and that it is the unexplored geometry of the vectorial probability that is responsible for the violation of Bell's theorem. This work paves the way for generalizing probability theory from the one-dimensional probability space to higher-dimensional ones and reveals that quantum systems with correlations violating Bell's theorem are physical platforms for producing real stochastic events of high-dimensional probability. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_12101 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A theory of vectorial probability for quantum correlations Feng, Sheng General Physics Randomness is a ubiquitous phenomenon that is practically accompanied by physical events described by probability theory. However, probability by definition in the theory is a nonnegative scalar quantity. Here, we propose the concept of vectorial probability, quantified as a vector with interesting but hidden geometry, and develop a theory to describe random events with correlations dictated by this geometry. Based on this theory, we construct a local model that is able to reproduce the predictions of quantum mechanics about Bell's theorem. We discover that the particle detection events in Bell experiments exhibit the stochastic nature of four-dimensional probability and that it is the unexplored geometry of the vectorial probability that is responsible for the violation of Bell's theorem. This work paves the way for generalizing probability theory from the one-dimensional probability space to higher-dimensional ones and reveals that quantum systems with correlations violating Bell's theorem are physical platforms for producing real stochastic events of high-dimensional probability. |
| title | A theory of vectorial probability for quantum correlations |
| topic | General Physics |
| url | https://arxiv.org/abs/2506.12101 |