Tracking exceptional points above the lasing threshold
Tracking exceptional points above the lasing threshold is a scholarly work by Li Ge and Isabelle Sagnes, published in 2023 in ''Nature Communications''. The main subjects of the publication include soliton, computer science, Lasing threshold, frequency comb, tracking, and Non-Hermitian quantum mechanics. The authors experimentally demonstrate that EP singularities in coupled semiconductor nanolasers can be accessed above the lasing threshold, where they become branch points of a nonlinear dynamical system.