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Título: | Josephson-based Threshold detector for Lévy-distributed current fluctuations |
Autor: | Guarcello, Claudio CSIC ORCID; Valenti, Davide; Spagnolo, Salvatore; Pierro, Vincenzo; Filatrella, G. | Fecha de publicación: | 24-abr-2019 | Editor: | American Physical Society | Citación: | Physical Review Applied 11: 044078 (2019) | Resumen: | We propose a threshold detector for Lévy-distributed fluctuations based on a Josephson junction. The Lévy-noise current added to a linearly ramped bias current results in clear changes in the distribution of switching currents out of the zero-voltage state of the junction. We observe that the analysis of the cumulative distribution function of the switching currents supplies information on both the characteristics' shape parameter α of the Lévy statistics. Moreover, we discuss a theoretical model, which allows characteristic features of the Lévy fluctuations to be extracted from a measured distribution of switching currents. In view of these results, this system can effectively find an application as a detector for a Lévy signal embedded in a noisy background. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevApplied.11.044078 | URI: | http://hdl.handle.net/10261/203877 | DOI: | 10.1103/PhysRevApplied.11.044078 | Identificadores: | doi: 10.1103/PhysRevApplied.11.044078 issn: 2331-7019 |
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Josephson_based.pdf | 1,85 MB | Adobe PDF | Visualizar/Abrir |
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