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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| Accès en ligne: | https://arxiv.org/abs/2511.16867 |
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| _version_ | 1866917326905933824 |
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| author | Arvizu, Francisco Ricardo Torres Ortega, Adrián Larralde, Hernán |
| author_facet | Arvizu, Francisco Ricardo Torres Ortega, Adrián Larralde, Hernán |
| contents | We study the phenomenon of quantum backflow in tight-binding systems with complex couplings, considering different boundary conditions and lattice sizes. Backflow is an intrinsically non-classical effect where the density flux associated with a particle described by the superposition of wave functions with, say, positive momentum, acquires negative values. We calculate the superposition of positive momentum states that gives rise to the strongest backflow in the system. We also evaluate the bounds on the total amount of probability that flows in the opposite direction of the particle's momentum. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_16867 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum backflow in biased tight-binding systems Arvizu, Francisco Ricardo Torres Ortega, Adrián Larralde, Hernán Quantum Physics We study the phenomenon of quantum backflow in tight-binding systems with complex couplings, considering different boundary conditions and lattice sizes. Backflow is an intrinsically non-classical effect where the density flux associated with a particle described by the superposition of wave functions with, say, positive momentum, acquires negative values. We calculate the superposition of positive momentum states that gives rise to the strongest backflow in the system. We also evaluate the bounds on the total amount of probability that flows in the opposite direction of the particle's momentum. |
| title | Quantum backflow in biased tight-binding systems |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.16867 |