Coupled non-uniform bi-squid: A numerical investigation

Longhini, Patrick; Berggren, Susan; Palacios, Antonio Lozano; In, Visarath; Escobar, Anna Leese de

doi:10.1063/1.4707038

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…These equations can be represented with matrix representation. Equations (4a) and (4b) show a numerically solvable row-echelon form of the first two rows of the matrix [14]:  + [8,13,14]. The numerical solutions of equation (4a) and (4b) gives us the voltage response of Bi-SQUID for the applied external magnetic flux.…”

Section: Magnetic Flux Quantummentioning

confidence: 99%

PySQIF, a Statistical Analysis Tool for Bi-SQUID Magnetometers

Akgun

Razmkhah

2022

J. Phys.: Conf. Ser.

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Superconductor loops with Josephson junctions such as SQUIDs and Bi-SQUID have unique properties that can be used as quantum accurate magnetometers, amplifiers, and many more applications. However, due to quantum interference between junctions and their nonlinear nature, their interaction with magnetic fields is hard to analyze. In this work, we introduce an open-source library titled PySQIF that determines the voltage response of the SQUIDs and Bi-SQUIDs in the presence of the external magnetic flux and can determine the design parameter margins by a statistical approach. This library was used to design and fabricate a Bi-SQUID magnetometer.

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Section: Magnetic Flux Quantummentioning

confidence: 99%

PySQIF, a Statistical Analysis Tool for Bi-SQUID Magnetometers

Akgun

Razmkhah

2022

J. Phys.: Conf. Ser.

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“…The combination of this property with the high linearity response of bi-SQUIDs seems very promising and has therefore attracted great research interest in developing and implementing one-and two-dimensional bi-SQUID SQIFs. Numerical investigation of array structures [35][36][37][38] showed that a Gaussian law of the cell loop area distribution is the most preferable for designing bi-SQUID SQIFs. The results achieved in experimental realizations and studies of both SQIF-like and regular arrays of bi-SQUIDs are considered below.…”

Section: Arrays Of Bi-squidsmentioning

confidence: 99%

Bi-SQUID: design for applications

Kornev

Kolotinskiy

Mukhanov

2020

Supercond. Sci. Technol.

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A review of the theory of bi-SQUIDs and the experimental studies of bi-SQUID-based devices is presented. The reported output voltage linearity of the fabricated devices ( ∼ 40 to 45 dB) is much higher than that observed for dc SQUIDs ( ∼ 20 dB). Recent numerical simulation evidence indicates that the linearity can be further improved to at least 60 to 70 dB. Results from a wide, multi-parameter optimization analysis are considered in the form of parameter domains for the voltage-response linearity. Thermal–noise influence, load impact and interfacing requirements are examined. Potential applications of the devices are discussed.

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