Voltage locking and other interactions in coupled superconducting weak links. I. Theory

Nerenberg, M. A. H.; Blackburn, James A.; Jillie, D. W.

doi:10.1103/physrevb.21.118

Cited by 51 publications

(17 citation statements)

References 7 publications

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“…where the dot denotes a derivative with respect to dimensionless time τ , which is defined by the dimensional time t in the following way [9] τ = 2eV 0 t ,…”

Section: Modelmentioning

confidence: 99%

Untitled

Spiechowicz¹,

Machura²,

Kostur³

et al. 2012

Acta Phys. Pol. B

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We report on a theoretical study of transport properties of two coupled Josephson junctions and compare two scenarios for controlling the currentvoltage characteristics when the system is driven by an external biased DC current and unbiased AC current consisting of one harmonic. In the first scenario, only one junction is subjected to both DC and AC currents. In the second scenario the signal is split -one junction is subjected to the DC current while the other is subjected to the AC current. We study DC voltages across both junctions and find diversity of anomalous transport regimes for the first and second driving scenarios.

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“…where the dot denotes a derivative with respect to dimensionless time τ , which is defined by the dimensional time t in the following way [9] τ = 2eV 0 t ,…”

Section: Modelmentioning

confidence: 99%

Untitled

Spiechowicz¹,

Machura²,

Kostur³

et al. 2012

Acta Phys. Pol. B

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“…The system is driven out of its equilibrium state by an external force. As a particular realization of this idea we propose two resistively shunted Josephson junction devices characterized by the critical Josephson supercurrents (I c1 , I c2 ), resistances (R 1 , R 2 ) and phases (φ 1 , φ 2 ) [18]. A schematic circuit representing the model is shown in figure 1.…”

Section: Model Of Driven Interacting Junctionsmentioning

confidence: 99%

Directed transport in coupled noisy Josephson junctions controlled via ac signals

Machura¹,

Spiechowicz²,

Łuczka³

2012

Phys. Scr.

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Transport properties of two coupled Josephson junctions driven by ac currents and thermal fluctuations are studied with the purpose of determining dc voltage characteristics. It is a physical realization of directed transport induced by a non-biased zero averaged external signal. The ac current is applied either to (A) only one junction as a biharmonic current or (B) is split into two simple harmonic components and separately applied to respective junctions. We identify regimes where junctions can operate with the same as well as opposite signs of voltages. A general observation is that in the same parameters regimes, the scenario (B) is more efficient in the sense that the induced dc voltages take greater values.

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“…As a step-by-step approach, there are several theoretical and experimental works concerning the dynamics of two Josephson junctions [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%