Observation of exceptional points in electronic circuits

By T. Stehmann, W D Heiss, F. Scholtz. 2003

145 citations recorded by the source corpus.

Two damped coupled oscillators have been used to demonstrate the occurrence of exceptional points in a purely classical system. The implementation was achieved with electronic circuits in the kHz-range. The experimental results perfectly match the mathematical predictions at the exceptional point. A discussion about the universal occurrence of exceptional points—connecting dissipation with spatial orientation—concludes this paper.

Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/b829fa9c844c69fecf05f7a9b1ce4e7e06c04efb

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In Atomic and Molecular Physics, and Optics

In Statistical and Nonlinear Physics

Citations in the corpus

Coupling of eigenvalues of complex matrices at diabolic and exceptional points (2004, background): “Both the DP and EP cases are interesting in applications and were observed in experiments, see e.g. [Dembowsky et al. (2001), Dembowsky et al. (2003), Stehmann et al. (2004)].”
Perspective on topological states of non-Hermitian lattices (2019, background): “spective on topological states of non-Hermitian lattices 2 the eigenvalues and eigenvectors coalesce (the non-Hermitian counterpart of Hermitian degeneracies), and have been studied for a few decades [40, 41, 42, 43, 44]. The focus of the present new wave of interest is, however, on a different aspe”
Unidirectional reflectionless light propagation at exceptional points (2017, background): “EPs have been studied in lasers [5], coupled dissipative dynamical systems [6], mechanics [7], electronic circuits [8], gyrokinetics of plasmas [9], and atomic as well as molecular systems [10].”