Schematics showing a visualization of an electromagnetic field distribution at an exceptional point, as well as a contour integral used for its computation.

Stable and accurate computation of eigenfrequency sensitivities near exceptional points, #nonHermitian systems #photonics #directDifferentiation @zuseinstitute.bsky.social @felixbinkowski.bsky.social #PhysRevResearch dx.doi.org/10.1103/Phys...