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Typical fast thermalization processes in closed many-body systems.

Peter Reimann1

  • 1Fakultät für Physik, Universität Bielefeld, 33615 Bielefeld, Germany.

Nature Communications
|March 2, 2016
PubMed
Summary
This summary is machine-generated.

This study presents a quantum mechanical prediction for many-body systems far from equilibrium. It quantitatively describes the entire temporal relaxation towards thermal equilibrium for a broad class of systems.

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Area of Science:

  • Quantum mechanics
  • Statistical mechanics
  • Many-body systems

Background:

  • Understanding microscopic many-particle motion is crucial for macroscopic experiments.
  • Statistical mechanics effectively describes systems near thermal equilibrium.
  • Quantitative, universal results for systems far from equilibrium are scarce.

Purpose of the Study:

  • To derive and verify a quantum mechanical prediction for non-equilibrium systems.
  • To provide a quantitative description of temporal relaxation towards thermal equilibrium.
  • To address the lack of knowledge in microscopic many-particle dynamics.

Main Methods:

  • Derivation of a quantum mechanical prediction.
  • Verification against experimental and numerical data from existing literature.
  • Application to a precisely defined class of closed many-body systems.

Main Results:

  • A universal, quantitative prediction for temporal relaxation is established.
  • The prediction accurately describes systems initially far from equilibrium.
  • The model applies to a broad range of closed many-body systems.

Conclusions:

  • The derived quantum mechanical prediction offers a significant advancement in understanding non-equilibrium dynamics.
  • This work provides a framework for describing relaxation processes in diverse many-body systems.
  • The findings bridge the gap between microscopic theory and macroscopic observations in non-equilibrium statistical mechanics.