Classical representation of the dynamics of quantum spin chains
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866915375488172032 |
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| author | Jin, Tony |
| author_facet | Jin, Tony |
| contents | Since the advent of quantum mechanics, classical probability interpretations have faced significant challenges. A notable issue arises with the emergence of negative probabilities when attempting to define the joint probability of non-commutative observables. In this work, we propose a resolution to this dilemma for quantum spin chains, by introducing an exact representation of their dynamics in terms of classical continuous-time Markov chains (CTMCs). These CTMCs effectively model the creation, annihilation, and propagation of pairs of classical particles and antiparticles. The quantum dynamics then emerges by averaging over various realizations of this classical process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_10502 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Classical representation of the dynamics of quantum spin chains Jin, Tony Statistical Mechanics Quantum Physics Since the advent of quantum mechanics, classical probability interpretations have faced significant challenges. A notable issue arises with the emergence of negative probabilities when attempting to define the joint probability of non-commutative observables. In this work, we propose a resolution to this dilemma for quantum spin chains, by introducing an exact representation of their dynamics in terms of classical continuous-time Markov chains (CTMCs). These CTMCs effectively model the creation, annihilation, and propagation of pairs of classical particles and antiparticles. The quantum dynamics then emerges by averaging over various realizations of this classical process. |
| title | Classical representation of the dynamics of quantum spin chains |
| topic | Statistical Mechanics Quantum Physics |
| url | https://arxiv.org/abs/2502.10502 |