Measuring topological invariants in small photonic lattices

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2014
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Bardyn, Charles-Edouard
Huber, Sebastian D.
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We present a robust practical scheme for measuring the topological invariants of non-interacting tight-binding models realized in arrays of coupled photonic cavities. More specifically, we aim to focus on the implementation of a single unit cell with tunable twisted boundary conditions in order to access the bulk topological properties of much larger systems experimentally. We illustrate our method in a two-dimensional integer quantum Hall model, demonstrating that the associated topological invariants can be measured to a high degree of accuracy despite the driven-dissipative bosonic nature of the system, and discuss the robustness of our scheme against various sources of disorder.

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ISO 690BARDYN, Charles-Edouard, Sebastian D. HUBER, Oded ZILBERBERG, 2014. Measuring topological invariants in small photonic lattices. In: New Journal of Physics. Institute of Physics Publishing (IOP). 2014, 16(12), 123013. eISSN 1367-2630. Available under: doi: 10.1088/1367-2630/16/12/123013
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@article{Bardyn2014-12-08Measu-55018,
  year={2014},
  doi={10.1088/1367-2630/16/12/123013},
  title={Measuring topological invariants in small photonic lattices},
  number={12},
  volume={16},
  journal={New Journal of Physics},
  author={Bardyn, Charles-Edouard and Huber, Sebastian D. and Zilberberg, Oded},
  note={Article Number: 123013}
}
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