Application of topological resonances in experimental investigation of a Fermi golden rule in microwave networks.
basic_science · Level V
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- Record sourced from PubMed, PMID 33862759.
- Also identified by DOI 10.1103/PhysRevE.103.032208.
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Abstract
We investigate experimentally a Fermi golden rule in two-edge and five-edge microwave networks with preserved time reversal invariance. A Fermi golden rule gives rates of decay of states obtained by perturbing embedded eigenvalues of graphs and networks. We show that the embedded eigenvalues are connected with the topological resonances of the analyzed systems and we find the trajectories of the topological resonances on the complex plane.