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Oscillating decorated interfaces in parametrically driven systems.

E Berrios-Caro1, M G Clerc1, M A Ferre1

  • 1Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Casilla 487-3, Santiago, Chile.

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Summary
This summary is machine-generated.

Complex interfaces in forced macroscopic systems transition from flat to oscillating. This study reveals the origin as parametric resonance between interface modes and external forcing frequencies.

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Area of Science:

  • Condensed matter physics
  • Nonlinear dynamics

Background:

  • Macroscopic systems with time-modulated parameters can display complex interfacial dynamics.
  • Interfaces between symmetric states are crucial in various physical phenomena.

Purpose of the Study:

  • To investigate the origin of the transition from a flat to an oscillating interface in forced macroscopic systems.
  • To develop a simplified model for understanding interface dynamics.

Main Methods:

  • Modeling a magnetic plane under an oscillating magnetic field.
  • Modeling an extended Josephson junction with alternating current.
  • Analytical derivation of a simplified interface dynamics model.
  • Numerical simulations of magnetic systems, Josephson junctions, and the simplified model.

Main Results:

  • A simplified model was derived to describe interface dynamics.
  • The transition from a flat to an oscillating interface was identified as a parametric resonance.
  • Analytical findings were validated by numerical simulations across different systems.

Conclusions:

  • Parametric resonance is the key mechanism driving interface transitions in these systems.
  • The simplified model accurately captures the essential dynamics of interface behavior.
  • The findings offer insights into the control of interfacial properties in driven condensed matter systems.