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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2504.10172 |
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| _version_ | 1866908544083689472 |
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| author | Walls, Sophia M. Bloss, Adam Ford, Ian J. |
| author_facet | Walls, Sophia M. Bloss, Adam Ford, Ian J. |
| contents | Quantum state diffusion is a framework within which measurement may be described as the continuous and gradual collapse of a quantum system to an eigenstate as a result of interaction with its environment. The irreversible nature of the quantum trajectories that arise may be characterised by the environmental stochastic entropy production associated with the measurement. We consider a system of two spin 1/2 particles undergoing either single particle measurements or measurements of the total z-spin component S_{z}. The mean asymptotic rates of environmental stochastic entropy production associated with collapse can depend on the eigenstate of S_{z} selected, and on the initial state of the system, offering an additional avenue for characterising quantum measurement. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_10172 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Characterising quantum measurement through environmental stochastic entropy production in a two spin 1/2 system Walls, Sophia M. Bloss, Adam Ford, Ian J. Quantum Physics Quantum state diffusion is a framework within which measurement may be described as the continuous and gradual collapse of a quantum system to an eigenstate as a result of interaction with its environment. The irreversible nature of the quantum trajectories that arise may be characterised by the environmental stochastic entropy production associated with the measurement. We consider a system of two spin 1/2 particles undergoing either single particle measurements or measurements of the total z-spin component S_{z}. The mean asymptotic rates of environmental stochastic entropy production associated with collapse can depend on the eigenstate of S_{z} selected, and on the initial state of the system, offering an additional avenue for characterising quantum measurement. |
| title | Characterising quantum measurement through environmental stochastic entropy production in a two spin 1/2 system |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.10172 |