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Absolute negative mobility induced by potential phase modulation.

Bruno S Dandogbessi1, Anatole Kenfack2

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We discovered that modulating a particle

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Area of Science:

  • Physics
  • Nonlinear Dynamics
  • Statistical Mechanics

Background:

  • Investigating particle transport in driven systems is crucial for understanding complex phenomena.
  • Absolute Negative Mobility (ANM) is a counterintuitive transport property where particles move against an applied force.

Purpose of the Study:

  • To explore the transport properties of a particle in a time-modulated deterministic inertial rocking system.
  • To investigate the conditions leading to Absolute Negative Mobility (ANM) in such a system.
  • To identify methods for controlling particle motion direction using system parameters.

Main Methods:

  • Simulations of a particle in a biased, time-modulated potential.
  • Analysis of particle trajectories and transport coefficients.
  • Examination of phase space dynamics and transitions between chaotic and periodic regimes.

Main Results:

  • Demonstrated the occurrence of Absolute Negative Mobility (ANM) under specific conditions of phase modulation and periodic driving.
  • Identified chaotic-periodic transitions as a primary source of ANM.
  • Showed that ANM can be controlled by adjusting the amplitude and frequency of the phase modulation.

Conclusions:

  • Time-modulated potentials in driven systems can induce Absolute Negative Mobility (ANM).
  • ANM is linked to transitions between chaotic and periodic dynamics.
  • The system offers a controllable platform for studying and potentially utilizing ANM, with a proposed two-parameter current plot for guidance.