Observation of Topological Phase Transitions in Photonic Quasicrystals
Author(s)
Verbin, Mor; Zilberberg, Oded; Kraus, Yaacov E.; Lahini, Yoav; Silberberg, Yaron
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Topological insulators and topological superconductors are distinguished by their bulk phase transitions and gapless states at a sharp boundary with the vacuum. Quasicrystals have recently been found to be topologically nontrivial. In quasicrystals, the bulk phase transitions occur in the same manner as standard topological materials, but their boundary phenomena are more subtle. In this Letter we directly observe bulk phase transitions, using photonic quasicrystals, by constructing a smooth boundary between topologically distinct one-dimensional quasicrystals. Moreover, we use the same method to experimentally confirm the topological equivalence between the Harper and Fibonacci quasicrystals.
Date issued
2013-02Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review Letters
Publisher
American Physical Society
Citation
Verbin, Mor et al. “Observation of Topological Phase Transitions in Photonic Quasicrystals.” Physical Review Letters 110.7 (2013). ©2013 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114