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Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
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Published on: March 10, 2021

Rectification of spatial disorder.

Jaegon Um1, Hyunsuk Hong, Fabio Marchesoni

  • 1School of Physics, Korea Institute for Advanced Study, Seoul , Korea.

Physical Review Letters
|March 10, 2012
PubMed
Summary
This summary is machine-generated.

Noiseless globally coupled-pinned oscillators rectify spatial disorder via a dynamical phase transition, generating spontaneous current. This collective mechanism also yields absolute negative mobility under weak external drive, relevant for molecular motor transport.

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Area of Science:

  • Physics
  • Nonlinear Dynamics
  • Statistical Mechanics

Background:

  • Globally coupled-pinned oscillators are fundamental in modeling complex systems.
  • Understanding the rectification of spatial disorder and emergent transport phenomena is crucial.

Purpose of the Study:

  • To investigate the rectification of spatial disorder by a large ensemble of noiseless globally coupled-pinned oscillators.
  • To explore the emergence of spontaneous current and negative mobility through dynamical phase transitions.

Main Methods:

  • Simulations of a large ensemble of noiseless globally coupled-pinned oscillators.
  • Analysis of current generation and mobility as a function of pinning potential profiles.
  • Investigation of dynamical phase transitions (first and second order).

Main Results:

  • Demonstration of spontaneous current generation by rectifying spatial disorder via a dynamical phase transition.
  • Observation of absolute negative mobility in the presence of a weak external drive, prominent at the phase transition.
  • The order of the phase transition (first or second) depends on the pinning potential profile.

Conclusions:

  • A collective mechanism in coupled oscillators can rectify disorder and generate directed motion.
  • Absolute negative mobility is achievable through these collective dynamics, with implications for molecular motors.
  • The findings offer insights into bidirectional cargo transport and complex system dynamics.