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Chesca, Boris

doi:10.1023/a:1022298113126

Cited by 27 publications

(35 citation statements)

References 22 publications

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“…2) The approximate analytical solution of FPE (5) was obtained in 5 . This solution is valid at β < 0.3 and relatively high thermal fluctuations level (Γ > 1).…”

Section: A Symmetric DC Squidmentioning

confidence: 99%

“…However, the adequate theory of the voltage-current characteristic (VCC) of the high-T C DC SQUID, which would predict its transfer function and energy resolution, still not exists. In recent time intensive computer simulations and theoretical studies have been performed to investigate the dependence of high-T C DC SQUID behavior on various factors 4,5,6 , but a marked disagreement of the numerical simulations with experiment is still observed: the experimental transfer functions in many cases are much lower than the values predicted by theory and computer simulations; the white noise is about ten times higher than predicted. This is one of the most important unsolved problems, which seriously hinders the optimization of high T C DC SQUIDs for applications.…”

Section: Introductionmentioning

confidence: 99%

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The voltage–current characteristic of high-TC DC SQUID: Theory, simulation, experiment

Greenberg

Novikov

2006

Physica C: Superconductivity

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The analytical theory for the voltage-current characteristics of the large inductance (L > 100pH) high-TC DC SQUIDs that has been developed previously is consistently compared with the computer simulations and the experiment. The theoretical voltage modulation for symmetric junctions is shown to be in a good agreement with the results of known computer simulations. It is shown that the asymmetry of the junctions results in the increase of the voltage modulation if the critical current is in excess of some threshold value (about 8µA). Below this value the asymmetry leads to the reduction of the voltage modulation as compared to the symmetric case. The comparison with the experiment shows that the asymmetry can explain a large portion of experimental values of the voltage modulation which lie above the theoretical curve for symmetric DC SQUID. It also explains experimental points which lie below the curve at small critical currents. However, a significant portion of these values which lie below the curve cannot be explained by the junction asymmetry.

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“…2) The approximate analytical solution of FPE (5) was obtained in 5 . This solution is valid at β < 0.3 and relatively high thermal fluctuations level (Γ > 1).…”

Section: A Symmetric DC Squidmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The voltage–current characteristic of high-TC DC SQUID: Theory, simulation, experiment

Greenberg

Novikov

2006

Physica C: Superconductivity

View full text Add to dashboard Cite

show abstract

“…Chesca [3,24] developed an analytical theory of symmetric DC SQUIDs by taking into account the effects of thermal fluctuations. The SQUID has a reduced inductance smaller than 1/p.…”

Section: Introductionmentioning

confidence: 99%

“…Greenberg [25] developed another theory for the voltage-current characteristics of high T c DC SQUIDs with large inductance (L > 100 pH). Chesca [3] and Greenberg [25] replaced two Langevin equations with one two-dimensional Fokker-Planck equation [26,27].…”

Section: Introductionmentioning

confidence: 99%