Observation of Exceptional Points in Electronic Circuits
arXiv:quant-ph/0312182 · doi:10.1088/0305-4470/37/31/012
Abstract
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 the paper.
4 pages, latex, 3 postscript figures, submitted for publication