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arXiv:1910.05035 (cond-mat)
[Submitted on 11 Oct 2019 (v1), last revised 20 Oct 2020 (this version, v2)]

Title:Local thermal fluctuations in current-carrying superconducting nanowires

Authors:Alexej D. Semenov, Mariia Sidorova, Mikhail A. Skvortsov, Artem Kuzmin, Konstantin Ilin, Michael Siegel
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Abstract:We analyze the effect of different types of fluctuations in internal electron energy on the rates of dark and photon counts in straight current-carrying superconducting nanowires. Dark counts appear due to thermal fluctuations in statistically independent cells with the effective size of the order of the coherence length; each count corresponds to an escape from the equilibrium state through an appropriate saddle point. For photon counts, spectral broadening of the deterministic cut off in the spectra of the detection efficiency can be phenomenologically explained by local thermal fluctuations in the electron energy within cells with the same effective volume as for dark counts.
Subjects: Superconductivity (cond-mat.supr-con); Instrumentation and Detectors (physics.ins-det)
Cite as: arXiv:1910.05035 [cond-mat.supr-con]
  (or arXiv:1910.05035v2 [cond-mat.supr-con] for this version)
  https://doi.org/10.48550/arXiv.1910.05035
Journal reference: Phys. Rev. B 102, 184508 (2020)
Related DOI: https://doi.org/10.1103/PhysRevB.102.184508

Submission history

From: Mariia Sidorova [view email]
[v1] Fri, 11 Oct 2019 09:09:57 UTC (4,441 KB)
[v2] Tue, 20 Oct 2020 11:28:21 UTC (7,437 KB)
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