دورية أكاديمية
Observation of reentrant metal-insulator transition in a random-dimer disordered SSH lattice.
| العنوان: | Observation of reentrant metal-insulator transition in a random-dimer disordered SSH lattice. |
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| المؤلفون: | Xu, Ze-Sheng, Gao, Jun, Iovan, Adrian, Khaymovich, Ivan M, Zwiller, Val, Elshaari, Ali W |
| المصدر: | Npj Nanophoton ; ISSN:2948-216X ; Volume:1 ; Issue:1 |
| سنة النشر: | 2024 |
| المجموعة: | PubMed Central (PMC) |
| مصطلحات موضوعية: | Integrated optics, Optics and photonics, Silicon photonics |
| الوصف: | The interrelationship between localization, quantum transport, and disorder has remained a fascinating focus in scientific research. Traditionally, it has been widely accepted in the physics community that in one-dimensional systems, as disorder increases, localization intensifies, triggering a metal-insulator transition. However, a recent theoretical investigation [Phys. Rev. Lett. 126, 106803] has revealed that the interplay between dimerization and disorder leads to a reentrant localization transition, constituting a remarkable theoretical advancement in the field. Here, we present the first experimental observation of reentrant localization using an experimentally friendly model, a photonic SSH lattice with random-dimer disorder, achieved by incrementally adjusting synthetic potentials. In the presence of correlated on-site potentials, certain eigenstates exhibit extended behavior following the localization transition as the disorder continues to increase. We directly probe the wave function in disordered lattices by exciting specific lattice sites and recording the light distribution. This reentrant phenomenon is further verified by observing an anomalous peak in the normalized participation ratio. Our study enriches the understanding of transport in disordered mediums and accentuates the substantial potential of integrated photonics for the simulation of intricate condensed matter physics phenomena. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | https://doi.org/10.1038/s44310-024-00008-7Test; https://pubmed.ncbi.nlm.nih.gov/38854858Test; https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11159787Test/ |
| DOI: | 10.1038/s44310-024-00008-7 |
| الإتاحة: | https://doi.org/10.1038/s44310-024-00008-7Test https://pubmed.ncbi.nlm.nih.gov/38854858Test https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11159787Test/ |
| حقوق: | © The Author(s) 2024. |
| رقم الانضمام: | edsbas.2A1F9305 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1038/s44310-024-00008-7 |
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