Thermal Fluctuations in Resonant Motion of Fluxons on a Josephson Transmission Line: Theory and Experiment

Joergensen, E.; Koshelets, V. P.; Monaco, R.; Mygind, J.; Samuelsen, M. R.; Salerno, Mario

doi:10.1103/physrevlett.49.1093

Cited by 121 publications

(41 citation statements)

References 7 publications

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“…In comparison to single fluxon oscillators they have higher output power, wider bandwidth, and easier tunability, but they have a wider linewidth [4] of the emitted radiation from the junction. Recent measurements by Koshelets et al [5,6] have indeed shown a linewidth for a Josephson flux-flow oscillator which is of about one order of magnitude wider than the one derived for a short (lumped) Josephson junction [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Form and width of the spectral line of a Josephson flux-flow oscillator

Pankratov

2002

Phys. Rev. B

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The behavior of a Josephson flux-flow oscillator in the presence of both bias current and magnetic field fluctuations has been studied. To derive the equation for slow phase dynamics in the limit of small noise intensity the Poincare method has been used. Both the form of spectral line and the linewidth of the flux-flow oscillator have been derived exactly on the basis of technique presented in the book of Malakhov 1 [1], known limiting cases are considered, limits of their applicability are discussed and appearance of excess noise is explained. Good coincidence of theoretical description with experimental results has been demonstrated.

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Section: Introductionmentioning

confidence: 99%

Form and width of the spectral line of a Josephson flux-flow oscillator

Pankratov

2002

Phys. Rev. B

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“…This is impossible from the point of view of a point particle, since then the internal current J I corresponds to an effective particle momentum [19,20,21,22], and the kink will perform a momentumless motion in the ratchet case. This circumstance raised discussions of whether the observed rectification of the kink motion is due to additional white noise or discretization effects (see e.g.…”

Section: In This Section We Proceed To the Case Of A Time-periodic Drmentioning

confidence: 99%

“…J I is also known in the literature as the total field momentum [19,20,21,22]. By differentiating Eq.…”

Section: The Modelmentioning

confidence: 99%

“…(5) and using Eq. (1) together with the boundary condition (2) it is straightforward to show [17,20,21] that the internal current J I satisfies the following ordinary differential equation:…”

Section: The Modelmentioning

confidence: 99%

“…Simultaneously, as follows from Eq. (6), for any zero-mean E(t), the time average value of the internal current J I should be zero on the attractor [17,20,21].…”

Section: In This Section We Proceed To the Case Of A Time-periodic Drmentioning

confidence: 99%

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Energy flow of moving dissipative topological solitons

Gorbach

Денисов

Flach

2006

Chaos: An Interdisciplinary Journal of Nonlinear Science

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We study the energy flow due to the motion of topological solitons in nonlinear extended systems in the presence of damping and driving. The total field momentum contribution to the energy flux, which reduces the soliton motion to that of a point particle, is insufficient. We identify an additional exchange energy flux channel mediated by the spatial and temporal inhomogeneity of the system state. In the well-known case of a DC external force the corresponding exchange current is shown to be small but non-zero. For the case of AC driving forces, which lead to a soliton ratchet, the exchange energy flux mediates the complete energy flow of the system. We also consider the case of combination of AC and DC external forces, as well as spatial discretization effects.

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Noise In Superconducting Josephson Junctions

Hansen

1991

Nonlinear Superconductive Electronics and Josephson Devices

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Thermal Fluctuations in Resonant Motion of Fluxons on a Josephson Transmission Line: Theory and Experiment

Cited by 121 publications

References 7 publications

Form and width of the spectral line of a Josephson flux-flow oscillator

Form and width of the spectral line of a Josephson flux-flow oscillator

Energy flow of moving dissipative topological solitons

Noise In Superconducting Josephson Junctions

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