Josephson Junctions for Metrology Applications

Benz, Samuel P.

doi:10.1007/978-3-030-20726-7_15

Cited by 13 publications

(7 citation statements)

References 92 publications

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“…Josephson effect-based quantum voltage standards have been widely developed and applied. In recent years, the differential sampling of AC waveforms based on PJVS have become popular [4]. The differential sampling method based on PJVS was first introduced to measure AC voltage by the Physikalisch-Technische Bundesanstalt (PTB) in 2007 [5].…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis of Phase Jitter in Differential Sampling of AC Waveforms Based on the Programmable Josephson Voltage Standard

Wang,

Sun,

Zhao

et al. 2024

Electronics

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The effect of phase jitter on differential sampling using the programmable Josephson voltage standard (PJVS) system is studied in this paper. A phase jitter model is established for the measured signal, and compensation coefficients for phase jitter removal are derived for three different post-processing methods based on the discrete Fourier transform algorithm (DFT). Based on our analysis, the phase jitter compensation coefficients are determined by the phase jitter angle distribution and harmonic order. Furthermore, after analyzing and simulating various common distributions, the phase jitter compensation coefficients have been verified. The simulation shows that when the standard deviation of the phase jitter angle is 20 ns, and the frequency of the measuring waveform is 3.46 kHz, the influence of the phase jitter is 1 × 10−7. The results of the simulation indicate that, in the differential sampling of AC waveforms using a PJVS system, phase jitter is one of the error terms for an uncertainty budget that cannot be neglected, particularly as the frequency of the measured waveforms increases.

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Section: Introductionmentioning

confidence: 99%

Simulation Analysis of Phase Jitter in Differential Sampling of AC Waveforms Based on the Programmable Josephson Voltage Standard

Wang,

Sun,

Zhao

et al. 2024

Electronics

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“…The violation of the classical standpoint by this phenomenon (conduction of electrons through blockade namely insulators or vacuum) has interestingly shifted concern to the domain [13,14]. Intense nonlinear considerations have subjected the junction to novel applications and technologies which are but not limited to metrology measurements [15,16], digital logic cryogenic [17], magnetometers [18,19], parametric amplifiers [20,21], spin-filters [22,23], voltage standards [24,25], highly responsive SQUID sensors [26,27], mechanical actuators [28,29], encryption [30], generation of random numbers [31,32], and microwave detectors [33].…”

Section: Introductionmentioning

confidence: 99%

Autonomous piecewise damping Josephson junction jerk oscillator: microcontroller implementation, controls, and combination synchronization

Sriram,

Ayena,

Ngongiah

et al. 2023

Phys. Scr.

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This paper evaluates the microcontroller implementation, offset boosting control, suppression of chaos, and combination of three types of synchronization in the autonomous piecewise damping Josephson junction (JJ) jerk oscillator (APDJJJO). The APDJJJO exhibits vast shapes of chaotic behaviors, bistable limit circles, bistable period-2-oscillation, and the coexistence of regular and chaotic behaviors exposed by numerical simulations. The microcontroller realization scheme of APDJJJO validates simulated dynamics. Proceeding, two constants are outlined in the rate equations of APDJJJO to achieve the linear offset boosting of constants based on the second and third state variables, respectively. The polarity of the chaotic signal of the second or third state variable can be flexibly altered by changing any of the two introduced constants while the other constant is kept at zero. When the two constants are equal, the second and third state variables can swap between bipolar and unipolar signals flexibly by altering the unique constant parameter. Moreover, theoretical probing is performed to validate the efficacy of the configured single controller engrossed in subduing chaos in APDJJJO. Lastly, the combination of three types of synchronization between two chaotic APDJJJO are analytically and numerically investigated.

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“…The JJ has been observed to integrate and contribute to superconducting electronics with wide complex characteristics in different definitions namely; external shunted JJ, JJ oscillators, frequency regime JJ, time delay JJ, force JJ, JJ neurons, and synchronization aspects of the JJ [13][14][15][16][17], just naming some cases. Nevertheless, peculiar applications linked to the JJ are not limited to fabrications and calibrations of meters and setting standards in voltages and frequencies [17,18], perceiving infinitesimal magnetic field strength through the SQUIDs [19,20], tera-and giga-hertz pulse generators and extreme-frequencies [21], swift switches to the order of picoseconds applicable in contemporary digital electronics [22,23], low dissipative systems [24,25], spread-spectrum and haphazard number generation applications [26,27], metrology [28], and parametric amplifiers [29].…”

Section: Introductionmentioning

confidence: 99%

Chaos and multistability in Josephson junction spurred by a Wien bridge oscillator: microcontroller implementation, chaotic and coexisting attractors controls

Godonou,

Sriram,

Ngongiah

et al. 2023

Phys. Scr.

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This paper explores the dynamics, microcontroller realization, chaotic, and coexisting attractors controls in the Josephson junction (JJ) spurred by the Wien bridge oscillator (WBO). The JJ spurred by WBO (JJSWBO) is designed by coupling through a gain a resistive-capacitive shunted JJ (RCSJJ) circuit to a WBO. The JJSWBO exhibits bistable periodic, monostable chaotic, and coexisting attractors as well as period-doubling bifurcation to chaos. A microcontroller implementation of JJSWBO is used to establish the dynamical behaviors spotted in JJSWBO during the numerical simulations. Moreover, two configured single controllers are engrossed to subdue the chaotic and coexisting behavior in JJSWBO. Lastly, thanks to the linear augmentation method, the coexisting attractors of JJSWBO are controlled to the desired trajectory.

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Josephson Junctions for Metrology Applications

Cited by 13 publications

References 92 publications

Simulation Analysis of Phase Jitter in Differential Sampling of AC Waveforms Based on the Programmable Josephson Voltage Standard

Simulation Analysis of Phase Jitter in Differential Sampling of AC Waveforms Based on the Programmable Josephson Voltage Standard

Autonomous piecewise damping Josephson junction jerk oscillator: microcontroller implementation, controls, and combination synchronization

Chaos and multistability in Josephson junction spurred by a Wien bridge oscillator: microcontroller implementation, chaotic and coexisting attractors controls

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