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Local thermal fluctuations in current-carrying superconducting nanowires

Semenov, Alexey and Sidorova, Mariia and Skvortsov, Mikhail and Kuzmin, Artem and Ilin, K. and Siegel, M. (2020) Local thermal fluctuations in current-carrying superconducting nanowires. Physical Review B, 102, p. 184508. American Physical Society. doi: 10.1103/PhysRevB.102.184508. ISSN 2469-9950.

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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 cutoff 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.

Item URL in elib:https://elib.dlr.de/141288/
Document Type:Article
Title:Local thermal fluctuations in current-carrying superconducting nanowires
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Semenov, AlexeyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Sidorova, MariiaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Skvortsov, MikhailUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kuzmin, Artemuniversity of karlsruheUNSPECIFIEDUNSPECIFIED
Ilin, K.Institute of Micro- and Nanosystems, University of KarlsruheUNSPECIFIEDUNSPECIFIED
Siegel, M.Institut für Mikro- und Nanoelektronische Systeme, Karlsruher Institut für Technologie, Hertzstr. 16, 76187 Karlsruhe,UNSPECIFIEDUNSPECIFIED
Date:13 November 2020
Journal or Publication Title:Physical Review B
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:102
DOI:10.1103/PhysRevB.102.184508
Page Range:p. 184508
Publisher:American Physical Society
ISSN:2469-9950
Status:Published
Keywords:Local thermal fluctuations, dark counts, stochastisch processes, phase slip centers
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Detectors for optical instruments (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Semenov, Prof.Dr. Alexey
Deposited On:15 Mar 2021 14:10
Last Modified:24 Oct 2023 11:53

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