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Area of Science:

  • Physics
  • Optics
  • Condensed Matter Physics

Background:

  • Light propagation in random media exhibits complex phenomena.
  • Coherent light fluctuations can lead to significant physical effects.

Purpose of the Study:

  • To investigate the induction of fluctuating radiation forces by mesoscopic coherent light fluctuations.
  • To develop a theoretical framework for understanding these forces.

Main Methods:

  • A hydrodynamic Langevin approach was employed.
  • The model accounts for mesoscopic coherent effects through a noise term.
  • Analysis focused on light flow as a nonequilibrium process.

Main Results:

  • Mesoscopic coherent fluctuations induce fluctuating radiation forces.
  • The phenomenon is described as a nonequilibrium light flow.
  • Fluctuating force strength is tunable via a parameter (conductance gL).

Conclusions:

  • The hydrodynamic Langevin approach provides a generalizable description for wave phenomena.
  • The study demonstrates the experimental feasibility of observing these fluctuating forces.