Search results for "Ginzburg landau equation"

showing 4 items of 4 documents

Cavity solitons in nondegenerate optical parametric oscillation

2000

Abstract We find analytically cavity solitons in nondegenerate optical parametric oscillators. These solitons are exact localised solutions of a pair of coupled parametrically driven Ginzburg–Landau equations describing the system for large pump detuning. We predict the existence of a Hopf bifurcation of the soliton resulting in a periodically pulsing localised structure. We give numerical evidence of the analytical results and address the problem of cavity soliton interaction.

Hopf bifurcationPhysicsbusiness.industryParametric oscillationGinzburg landau equationPhysics::OpticsNonlinear opticsAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialssymbols.namesakeNonlinear Sciences::Exactly Solvable and Integrable SystemsExact solutions in general relativityOpticsQuantum mechanicsQuantum electrodynamicssymbolsSolitonElectrical and Electronic EngineeringPhysical and Theoretical ChemistrybusinessNonlinear Sciences::Pattern Formation and SolitonsParametric statisticsOptics Communications
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Wave Modulations in the Nonlinear Biinductance Transmission Line

2001

Adding dissipative elements to a discrete biinductance transmission line which admits both low frequency (LF) and high frequency (HF) modes, dynamics of a weakly nonlinear modulated wave is investi...

PhysicsNonlinear systemModulational instabilityCondensed matter physicsComputer simulationWave propagationTransmission lineQuantum electrodynamicsDissipative systemGinzburg landau equationGeneral Physics and AstronomyLow frequencyJournal of the Physical Society of Japan
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Asymptotic structure factor for the two-component Ginzburg-Landau equation

1992

We derive an analytic form for the asymptotic time-dependent structure factor for the two-component Ginzburg-Landau equation in arbitrary dimensions. This form is in reasonable agreement with results from numerical simulations in two dimensions. A striking feature of our analytic form is the absence of Porod's law in the tail. This is a consequence of the continuous symmetry of the Hamiltonian, which inhibits the formation of sharp domain walls.

Physicssymbols.namesakeContinuous symmetryDynamic structure factorsymbolsGinzburg landau equationGeneral Physics and AstronomyStructure factorHamiltonian (quantum mechanics)Mathematical physicsPhysics Letters A
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Three-Dimensional Superconducting Nanohelices Grown by He+-Focused-Ion-Beam Direct Writing

2019

Novel schemes based on the design of complex three-dimensional (3D) nanoscale architectures are required for the development of the next generation of advanced electronic components. He+ focused-ion-beam (FIB) microscopy in combination with a precursor gas allows one to fabricate 3D nanostructures with an extreme resolution and a considerably higher aspect ratio than FIB-based methods, such as Ga+ FIB-induced deposition, or other additive manufacturing technologies. In this work, we report the fabrication of 3D tungsten carbide nanohelices with on-demand geometries via controlling key deposition parameters. Our results show the smallest and highest-densely packed nanohelix ever fabricated s…

Research programFocused-ion-beam-induced depositionLibrary scienceBioengineeringGinzburg−Landau equation02 engineering and technologyEuropean Social FundPhase slipsHelium ion microscopePolitical scienceSemiconductors and NanostructuresGeneral Materials ScienceCost action[PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]ComputingMilieux_MISCELLANEOUSGinzburg-Landau equationNanosuperconductorsMechanical EngineeringGinzburg landau equationFísicaQuímicaGeneral ChemistryDirect writing021001 nanoscience & nanotechnologyCondensed Matter PhysicsWork (electrical)Christian ministryHigh field0210 nano-technologyThree-dimensional nanoprinting
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