Abstract
The peaked structures of the excess noise observed in many superconducting transitionedge sensors are analyzed in both the normalized resistance and the frequency domains. Inthe framework of our dynamical percolation model we find high amplitude noise peaks inthe low normalized resistance range (0.2 approximately) and of much lower amplitude inthe high normalized resistance range (0.8), but no peaks are obtained in the power noisespectra in the very wide frequency range explored. The excess noise peaks experimentallyexplored are accounted for quantitatively by our statistical model of correlated avalanches.Our preliminary experimental noise results on a Ir thin film sensor are compared withliterature results.
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