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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, Konstantin and Siegel, Michael (2020) Local thermal fluctuations in current-carrying superconducting nanowires. Physical Review B, 102 (184508). American Physical Society. doi: 10.1103/PhysRevB.102.184508. ISSN 2469-9950.

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Official URL: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.184508

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/141319/
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, MariiaUNSPECIFIEDhttps://orcid.org/0000-0002-9082-442XUNSPECIFIED
Skvortsov, MikhailUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kuzmin, ArtemUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ilin, KonstantinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Siegel, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:November 2020
Journal or Publication Title:Physical Review B
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:102
DOI:10.1103/PhysRevB.102.184508
Publisher:American Physical Society
ISSN:2469-9950
Status:Published
Keywords:superconducting nanowires, fluctuations, single-photon detectors
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignment
DLR - Program:no assignment
DLR - Research theme (Project):no assignment
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy
Deposited By: Sidorova, Mariia
Deposited On:15 Mar 2021 14:12
Last Modified:24 Oct 2023 11:53

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