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Electromagnetic ion-beam instabilities in a cold plasma
(1996)
We study the stability of the cold-plasma dispersion relation for circularly polarized waves in a plasma composed of an ion background and an ion beam. The presence of the beam introduces a resonant branch into the dispersion ...
EXCITATION AND PARAMETRIC DECAYS OF ELECTRON/ION WHISTLER WAVES
(AMERICAN INSTITUTE OF PHYSICS, 2001)
We study parametric decays of electron/ion whistler waves. These waves have negative energy and their parametric decays are expected to lead to explosive instabilities. Simulation studies show explosive growth of some of ...
Teoria da estabilidade paramétrica para sistemas hamiltonianos com aplicação no problema do pêndulo carregado com ponto de suspensão oscilante
(Pós-Graduação em MatemáticaUniversidade Federal de Sergipe, 2022)
Parametric resonances in a base-excited double pendulum
(SPRINGERDORDRECHT, 2012)
Two parametrically-induced phenomena are addressed in the context of a double pendulum subject to a vertical base excitation. First, the parametric resonances that cause the stable downward vertical equilibrium to bifurcate ...
Parametric decay of a circularly polarized electromagnetic wave in an electron-positron magnetized plasma
(1997)
We study the parametric decays of an electromagnetic wave propagating along an external magnetic field in an electron-positron plasma. We include weakly relativistic effects on the particle motions in the wave field, and ...
Estabilidade paramétrica com aplicações em problemas de osciladores paramétricos
(Pós-Graduação em MatemáticaUniversidade Federal de Sergipe (UFS), 2023)
Parametric decays of a linearly polarized electromagnetic wave in an electron-positron plasma
(1997)
We study the parametric decays of a large amplitude, linearly polarized electromagnetic wave in an electron-positron plasma. We include harmonic generation, the ponderomotive force, and weakly relativistic effects. It is ...
Parametrically driven instability in quasi-reversal systemsINTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS IN APPLIED SCIENCES AND ENGINEERING
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2016)
Parametrically driven instability in quasi-reversal systemsINTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS IN APPLIED SCIENCES AND ENGINEERING
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2016)
Alternating spin-polarized current induces parametric resonance in spin valves
(2015)
Ferromagnetic systems under the influence of spin-polarized currents exhibit rich spatiotemporal dynamics at nanoscales. We study spin-transfer nano-oscillators driven by the combination of alternating and direct spin-polarized ...