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Exceptional behaviour without exceptional effort

The adiabatic encirclement of exceptional points in non-Hermitian systems is known to produce surprising non-adiabatic effects. A new study finds a cheat code to exactly emulate this behaviour without ever having to produce an exceptional point.

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Fig. 1: EP encirclement visualized.


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Correspondence to Seunghwi Kim or Gaurav Bahl.

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Kim, S., Bahl, G. Exceptional behaviour without exceptional effort. Nat. Photon. 15, 556–557 (2021).

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