Low-frequency critical current noise in Josephson junctions induced by temperature fluctuations

2012 ◽  
Vol 101 (9) ◽  
pp. 092601 ◽  
Author(s):  
S. M. Anton ◽  
C. D. Nugroho ◽  
J. S. Birenbaum ◽  
S. R. O’Kelley ◽  
V. Orlyanchik ◽  
...  
Keyword(s):  
Critical Current ◽  
Josephson Junctions ◽  
Low Frequency ◽  
Temperature Fluctuations ◽  
Current Noise

scholarly journals Low-frequency critical current noise in graphene Josephson junctions in the open-circuit gate voltage limit

2021 ◽  
Author(s):  
Francesco M. D. Pellegrino ◽  
Giuseppe Falci ◽  
Elisabetta Paladino
Keyword(s):  
Temperature Dependence ◽  
Critical Current ◽  
Gate Voltage ◽  
Josephson Junctions ◽  
Flicker Noise ◽  
Low Frequency ◽  
Wide Frequency Range ◽  
Open Circuit ◽  
Current Noise ◽  
Voltage Limit

AbstractWe investigate critical current noise in short ballistic graphene Josephson junctions in the open-circuit gate-voltage limit within the McWorther model. We find flicker noise in a wide frequency range and discuss the temperature dependence of the noise amplitude as a function of the doping level. At the charge neutrality point we find a singular temperature dependence $$T^{-3}$$ T - 3 , strikingly different from the linear dependence expected for short ballistic graphene Josephson junctions under fixed gate voltage.

scholarly journals Low frequency resistance and critical current fluctuations in Al-based Josephson junctions

2013 ◽  
Vol 102 (14) ◽  
pp. 142602 ◽  
Author(s):  
C. D. Nugroho ◽  
V. Orlyanchik ◽  
D. J. Van Harlingen
Keyword(s):  
Critical Current ◽  
Josephson Junctions ◽  
Low Frequency ◽  
Current Fluctuations

Critical current noise investigations in underdamped Josephson devices

2011 ◽  
Vol 83 (9) ◽  
Author(s):  
C. Granata ◽  
A. Vettoliere ◽  
R. Russo ◽  
M. Russo ◽  
B. Ruggiero
Keyword(s):  
Critical Current ◽  
Current Noise ◽  
Josephson Devices

Erratum: Low‐frequency behavior of coupled Josephson junctions near phase locking [Appl. Phys. Lett. 41, 566 (1982)]

1983 ◽  
Vol 42 (3) ◽  
pp. 305-305 ◽  
Author(s):  
A. K. Jain ◽  
K. K. Likharev ◽  
J. E. Lukens ◽  
J. E. Sauvageau
Keyword(s):  
Josephson Junctions ◽  
Phase Locking ◽  
Low Frequency ◽  
Frequency Behavior

scholarly journals Large Temperature Fluctuations due to Cold-Air Pool Displacement along the Lee Slope of a Desert Mountain

2017 ◽  
Vol 56 (4) ◽  
pp. 1083-1098 ◽  
Author(s):  
Matthew E. Jeglum ◽  
Sebastian W. Hoch ◽  
Derek D. Jensen ◽  
Reneta Dimitrova ◽  
Zachariah Silver
Keyword(s):  
Low Frequency ◽  
Temperature Fluctuations ◽  
Atmospheric Modeling ◽  
Large Temperature ◽  
Complex Flow ◽  
Near Surface ◽  
Cold Air ◽  
Flow Interactions ◽  
Initial Drop ◽  
Program Temperature

AbstractLarge temperature fluctuations (LTFs), defined as a drop of the near-surface temperature of at least 3°C in less than 30 min followed by a recovery of at least half of the initial drop, were frequently observed during the Mountain Terrain Atmospheric Modeling and Observations (MATERHORN) program. Temperature time series at over 100 surface stations were examined in an automated fashion to identify and characterize LTFs. LTFs occur almost exclusively at night and at locations elevated 50–100 m above the basin floors, such as the east slope of the isolated Granite Mountain (GM). Temperature drops associated with LTFs were as large as 13°C and were typically greatest at heights of 4–10 m AGL. Observations and numerical simulations suggest that LTFs are the result of complex flow interactions of stably stratified flow with a mountain barrier and a leeside cold-air pool (CAP). An orographic wake forms over GM when stably stratified southwesterly nocturnal flow impinges on GM and is blocked at low levels. Warm crest-level air descends in the lee of the barrier, and the generation of baroclinic vorticity leads to periodic development of a vertically oriented vortex. Changes in the strength or location of the wake and vortex cause a displacement of the horizontal temperature gradient along the slope associated with the CAP edge, resulting in LTFs. This mechanism explains the low frequency of LTFs on the west slope of GM as well as the preference for LTFs to occur at higher elevations later at night, as the CAP depth increases.

Critical current–gate voltage characteristics in short- and long-gated Josephson junctions

1997 ◽  
Vol 5 (7-12) ◽  
pp. 357-364 ◽  
Author(s):  
Hideaki Takayanagi ◽  
Tatsushi Akazaki ◽  
Etsuko Toyoda
Keyword(s):  
Critical Current ◽  
Gate Voltage ◽  
Josephson Junctions

scholarly journals Persistent current noise in narrow Josephson junctions

2021 ◽  
Vol 104 (10) ◽  
Author(s):  
Dushko Kuzmanovski ◽  
Rubén Seoane Souto ◽  
Alexander V. Balatsky
Keyword(s):  
Josephson Junctions ◽  
Persistent Current ◽  
Current Noise
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