Fluctuation-dissipation theorems for systems in non-thermal equilibrium and applications

  title={Fluctuation-dissipation theorems for systems in non-thermal equilibrium and applications},
  author={G. Agarwal},
  journal={Zeitschrift f{\"u}r Physik A Hadrons and nuclei},
  • G. Agarwal
  • Published 1972
  • Physics
  • Zeitschrift für Physik A Hadrons and nuclei
The linear response theory of systems obeying Fokker-Planck equations is discussed under the assumption that the principle of detailed balance is satisfied. This theory is used to obtain fluctuation-dissipation theorems for systems in a non-thermal equilibrium state corresponding to the steady state solution of the Fokker-Planck equation. Some of the aspects of the threshold region of a single mode laser (without detuning) are discussed. In particular it is shown that, contrary to the results… Expand
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