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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2511.07273 |
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| _version_ | 1866914257966202880 |
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| author | Delgado-Quesada, Jefferson Rojas-González, Edgar A. |
| author_facet | Delgado-Quesada, Jefferson Rojas-González, Edgar A. |
| contents | A quantum walk in an ordered medium exhibits ballistic propagation. A related process is the driven quantum walk, in which the number of walkers varies along the propagation. In this work, we show that a driven quantum walk of biphoton states in an array of nonlinear waveguides does not propagate ballistically, but instead presents two transport regimes: superballistic and superdiffusive. We also study the effects of off-diagonal and diagonal disorder. In addition to the observation of Anderson localization, both types of disorder lead to the disappearance of the superballistic regime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_07273 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Transport regimes of biphoton-state quantum walks in ordered and disordered arrays of nonlinear waveguides Delgado-Quesada, Jefferson Rojas-González, Edgar A. Quantum Physics A quantum walk in an ordered medium exhibits ballistic propagation. A related process is the driven quantum walk, in which the number of walkers varies along the propagation. In this work, we show that a driven quantum walk of biphoton states in an array of nonlinear waveguides does not propagate ballistically, but instead presents two transport regimes: superballistic and superdiffusive. We also study the effects of off-diagonal and diagonal disorder. In addition to the observation of Anderson localization, both types of disorder lead to the disappearance of the superballistic regime. |
| title | Transport regimes of biphoton-state quantum walks in ordered and disordered arrays of nonlinear waveguides |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2511.07273 |