TL;DR
This review discusses the concept of effective temperature in out-of-equilibrium systems, exploring its theoretical basis, measurement techniques, and open questions in the context of slow dynamics.
Contribution
It provides a comprehensive overview of the effective temperature concept, including its thermodynamic interpretation and measurement methods in non-equilibrium systems.
Findings
Effective temperature relates to deviations from fluctuation-dissipation theorem.
Measurements include analytic, numeric, and experimental approaches.
Open issues highlight ongoing research challenges.
Abstract
This review presents the effective temperature notion as defined from the deviations from the equilibrium fluctuation-dissipation theorem in out of equilibrium systems with slow dynamics. The thermodynamic meaning of this quantity is discussed in detail. Analytic, numeric and experimental measurements are surveyed. Open issues are mentioned.
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