Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chains
Anderson localization has been widely studied in low-dimensional aperiodic electronic, photonic, and acoustic systems. However, the disorder effect in the plasmonic system, where retardation and long-range couplings interact in complex ways, remains an open question. In this work, we investigate the...
| Main Authors: | , , |
|---|---|
| 格式: | 文件 |
| 语言: | English |
| 出版: |
American Physical Society
2024-03-01
|
| 丛编: | Physical Review Research |
| 在线阅读: | http://doi.org/10.1103/PhysRevResearch.6.013322 |
| _version_ | 1827284974766653440 |
|---|---|
| author | Yizhi Hu Kun Yan Xiaobin Chen |
| author_facet | Yizhi Hu Kun Yan Xiaobin Chen |
| author_sort | Yizhi Hu |
| collection | DOAJ |
| description | Anderson localization has been widely studied in low-dimensional aperiodic electronic, photonic, and acoustic systems. However, the disorder effect in the plasmonic system, where retardation and long-range couplings interact in complex ways, remains an open question. In this work, we investigate the localization properties of one-dimensional quasiperiodic plasmonic chains using the coupled dipole method and linearized Green's function. Our models, which incorporate nearest-neighbor or long-range dipole interactions, reveal localization transitions, mobility edges, and intermediate phases. It is found that long-range dipole interactions and non-Hermiticity due to retardation both play crucial roles in Anderson localization, yielding the emergence of intermediate phases with varying widths. A link between non-Hermiticity and Anderson transition is established by the mean phase rigidity, revealing strong non-Hermiticity along the phase boundary. The plasmonic model involving long-range interplay and retarded effect presents richer localization phenomena than the electronic counterpart that usually includes only nearest-neighbor coupling, laying a foundation for experimental observations of Anderson localization on plasmonic platforms. |
| first_indexed | 2024-04-24T10:07:21Z |
| format | Article |
| id | doaj.art-65685c821ca34d45830161e3f53f42b1 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:07:21Z |
| publishDate | 2024-03-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-65685c821ca34d45830161e3f53f42b12024-04-12T17:40:50ZengAmerican Physical SocietyPhysical Review Research2643-15642024-03-016101332210.1103/PhysRevResearch.6.013322Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chainsYizhi HuKun YanXiaobin ChenAnderson localization has been widely studied in low-dimensional aperiodic electronic, photonic, and acoustic systems. However, the disorder effect in the plasmonic system, where retardation and long-range couplings interact in complex ways, remains an open question. In this work, we investigate the localization properties of one-dimensional quasiperiodic plasmonic chains using the coupled dipole method and linearized Green's function. Our models, which incorporate nearest-neighbor or long-range dipole interactions, reveal localization transitions, mobility edges, and intermediate phases. It is found that long-range dipole interactions and non-Hermiticity due to retardation both play crucial roles in Anderson localization, yielding the emergence of intermediate phases with varying widths. A link between non-Hermiticity and Anderson transition is established by the mean phase rigidity, revealing strong non-Hermiticity along the phase boundary. The plasmonic model involving long-range interplay and retarded effect presents richer localization phenomena than the electronic counterpart that usually includes only nearest-neighbor coupling, laying a foundation for experimental observations of Anderson localization on plasmonic platforms.http://doi.org/10.1103/PhysRevResearch.6.013322 |
| spellingShingle | Yizhi Hu Kun Yan Xiaobin Chen Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chains Physical Review Research |
| title | Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chains |
| title_full | Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chains |
| title_fullStr | Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chains |
| title_full_unstemmed | Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chains |
| title_short | Emergent mobility edges and intermediate phases in one-dimensional quasiperiodic plasmonic chains |
| title_sort | emergent mobility edges and intermediate phases in one dimensional quasiperiodic plasmonic chains |
| url | http://doi.org/10.1103/PhysRevResearch.6.013322 |
| work_keys_str_mv | AT yizhihu emergentmobilityedgesandintermediatephasesinonedimensionalquasiperiodicplasmonicchains AT kunyan emergentmobilityedgesandintermediatephasesinonedimensionalquasiperiodicplasmonicchains AT xiaobinchen emergentmobilityedgesandintermediatephasesinonedimensionalquasiperiodicplasmonicchains |