Observation of Topological Phase Transitions in Photonic Quasicrystals

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2013
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Verbin, Mor
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.

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ISO 690VERBIN, Mor, Oded ZILBERBERG, Yaacov E. KRAUS, Yoav LAHINI, Yaron SILBERBERG, 2013. Observation of Topological Phase Transitions in Photonic Quasicrystals. In: Physical Review Letters. American Physical Society (APS). 2013, 110(7), 076403. ISSN 0031-9007. eISSN 1079-7114. Available under: doi: 10.1103/PhysRevLett.110.076403
BibTex
@article{Verbin2013-02-15Obser-54923,
  year={2013},
  doi={10.1103/PhysRevLett.110.076403},
  title={Observation of Topological Phase Transitions in Photonic Quasicrystals},
  number={7},
  volume={110},
  issn={0031-9007},
  journal={Physical Review Letters},
  author={Verbin, Mor and Zilberberg, Oded and Kraus, Yaacov E. and Lahini, Yoav and Silberberg, Yaron},
  note={Article Number: 076403}
}
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