Orbital topological edge states and phase transitions in one-dimensional acoustic resonator chains
Abstract Topological phases of matter have attracted significant attention in recent years, due to the unusual robustness of their response to defects and disorder. Various research efforts have been exploring classical and quantum topological wave phenomena in engineered materials, in which differe...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-12-01
|
| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-44042-z |
| _version_ | 1797397884375662592 |
|---|---|
| author | Feng Gao Xiao Xiang Yu-Gui Peng Xiang Ni Qi-Li Sun Simon Yves Xue-Feng Zhu Andrea Alù |
| author_facet | Feng Gao Xiao Xiang Yu-Gui Peng Xiang Ni Qi-Li Sun Simon Yves Xue-Feng Zhu Andrea Alù |
| author_sort | Feng Gao |
| collection | DOAJ |
| description | Abstract Topological phases of matter have attracted significant attention in recent years, due to the unusual robustness of their response to defects and disorder. Various research efforts have been exploring classical and quantum topological wave phenomena in engineered materials, in which different degrees of freedom (DoFs) – for the most part based on broken crystal symmetries associated with pseudo-spins – induce synthetic gauge fields that support topological phases and unveil distinct forms of wave propagation. However, spin is not the only viable option to induce topological effects. Intrinsic orbital DoFs in spinless systems may offer a powerful alternative platform, mostly unexplored to date. Here we reveal orbital-selective wave-matter interactions in acoustic systems supporting multiple orbital DoFs, and report the experimental demonstration of disorder-immune orbital-induced topological edge states in a zigzag acoustic 1D spinless lattice. This work expands the study of topological phases based on orbitals, paving the way to explore other orbital-dependent phenomena in spinless systems. |
| first_indexed | 2024-03-09T01:16:39Z |
| format | Article |
| id | doaj.art-8347428a567548ec85c8b18a4ab076b1 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-09T01:16:39Z |
| publishDate | 2023-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-8347428a567548ec85c8b18a4ab076b12023-12-10T12:25:33ZengNature PortfolioNature Communications2041-17232023-12-011411810.1038/s41467-023-44042-zOrbital topological edge states and phase transitions in one-dimensional acoustic resonator chainsFeng Gao0Xiao Xiang1Yu-Gui Peng2Xiang Ni3Qi-Li Sun4Simon Yves5Xue-Feng Zhu6Andrea Alù7School of Physics and Innovation Institute, Huazhong University of Science and TechnologySchool of Physics and Innovation Institute, Huazhong University of Science and TechnologySchool of Physics and Innovation Institute, Huazhong University of Science and TechnologySchool of Physics and Electronics, Central South UniversitySchool of Physics and Innovation Institute, Huazhong University of Science and TechnologyPhotonics Initiative, Advanced Science Research Center, City University of New YorkSchool of Physics and Innovation Institute, Huazhong University of Science and TechnologyPhotonics Initiative, Advanced Science Research Center, City University of New YorkAbstract Topological phases of matter have attracted significant attention in recent years, due to the unusual robustness of their response to defects and disorder. Various research efforts have been exploring classical and quantum topological wave phenomena in engineered materials, in which different degrees of freedom (DoFs) – for the most part based on broken crystal symmetries associated with pseudo-spins – induce synthetic gauge fields that support topological phases and unveil distinct forms of wave propagation. However, spin is not the only viable option to induce topological effects. Intrinsic orbital DoFs in spinless systems may offer a powerful alternative platform, mostly unexplored to date. Here we reveal orbital-selective wave-matter interactions in acoustic systems supporting multiple orbital DoFs, and report the experimental demonstration of disorder-immune orbital-induced topological edge states in a zigzag acoustic 1D spinless lattice. This work expands the study of topological phases based on orbitals, paving the way to explore other orbital-dependent phenomena in spinless systems.https://doi.org/10.1038/s41467-023-44042-z |
| spellingShingle | Feng Gao Xiao Xiang Yu-Gui Peng Xiang Ni Qi-Li Sun Simon Yves Xue-Feng Zhu Andrea Alù Orbital topological edge states and phase transitions in one-dimensional acoustic resonator chains Nature Communications |
| title | Orbital topological edge states and phase transitions in one-dimensional acoustic resonator chains |
| title_full | Orbital topological edge states and phase transitions in one-dimensional acoustic resonator chains |
| title_fullStr | Orbital topological edge states and phase transitions in one-dimensional acoustic resonator chains |
| title_full_unstemmed | Orbital topological edge states and phase transitions in one-dimensional acoustic resonator chains |
| title_short | Orbital topological edge states and phase transitions in one-dimensional acoustic resonator chains |
| title_sort | orbital topological edge states and phase transitions in one dimensional acoustic resonator chains |
| url | https://doi.org/10.1038/s41467-023-44042-z |
| work_keys_str_mv | AT fenggao orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains AT xiaoxiang orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains AT yuguipeng orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains AT xiangni orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains AT qilisun orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains AT simonyves orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains AT xuefengzhu orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains AT andreaalu orbitaltopologicaledgestatesandphasetransitionsinonedimensionalacousticresonatorchains |