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Fig. 7


Échelle diagrams of the eigenfrequencies of ten coupled harmonic oscillators, at a given “time” λ in the vicinity of an avoided crossing. The left panel presents the case of a weak coupling (γ = 0.01) and the right panel the case of a strong coupling (γ = 0.06). The frequencies that are circled correspond those used to estimate the strength of the coupling in Sect. 6.

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