Dynamically encircling exceptional points in a waveguide: asymmetric mode switching from the breakdown of adiabaticity

@article{Doppler2016DynamicallyEE,
  title={Dynamically encircling exceptional points in a waveguide: asymmetric mode switching from the breakdown of adiabaticity},
  author={J{\"o}rg Doppler and Alexei A. Mailybaev and Julian Bohm and Ulrich Kuhl and Adrian Girschik and Florian Libisch and Thomas J. Milburn and Peter Rabl and Nimrod Moiseyev and Stefan Rotter},
  journal={Nature},
  year={2016}
}
with loss two modes their resonant of point” intriguing behavior is to when encircling an exceptional like a state-flip or the accumulation of a geometric phase Experiments topological structure of exceptional a full encircling the breakdown of adiabaticity we 

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