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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Published on: April 4, 2017

From measurements to quantum friction.

Stephen M Barnett1, John Jeffers, James D Cresser

  • 1Department of Physics, University of Strathclyde, Glasgow G4 0NG, UK.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|June 22, 2011
PubMed
Summary

We introduce a quantum friction theory using generalized measurements. This theory reveals unique quantum effects on particle energy and position diffusion, ensuring a robust theoretical framework.

Area of Science:

  • Quantum mechanics
  • Friction theory
  • Statistical physics

Background:

  • Understanding friction at the quantum level is crucial for nanoscale phenomena.
  • Existing models often neglect quantum effects in dissipative systems.

Purpose of the Study:

  • To develop a quantum theory of friction.
  • To investigate quantum contributions to steady-state energy and diffusion.
  • To ensure the theoretical framework is well-behaved and physically significant.

Main Methods:

  • Describing medium interactions via generalized measurements of position and momentum.
  • Developing a quantum mechanical model for friction.

Main Results:

  • Predicted intrinsically quantum contributions to steady-state energy.

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  • Identified quantum contributions to position diffusion.
  • Demonstrated the physical significance of these quantum effects.

    • Conclusions:

    • The proposed quantum friction theory provides new insights into dissipative quantum systems.
    • Generalized measurements offer a powerful tool for modeling quantum friction.
    • The theory ensures a well-behaved and physically meaningful description of quantum friction.