Generalized fluctuation-dissipation relation and effective temperature upon heating a deeply supercooled liquid.

We show that a generalized fluctuation-dissipation relation applies upon instantaneously increasing the temperature of a deeply supercooled liquid. This has the same two-step shape of the relation found upon cooling the liquid, but with opposite violation, indicating an effective temperature that is lower than bath temperature. We show that the effective temperature exhibits some sensible time dependence and that it retains its connection with the partitioned phase space visited in aging. We underline the potential relevance of our numerical results for experimental studies of the fluctuation-dissipation relation in glassy systems.

• Publication year

  2012

• Venue

  Physical Review Letters

• Publication date

  2012-10-10

• Fields of study

  Materials Science, Physics, Medicine

• Identifiers
  DOI 10.1103/PhysRevLett.110.035701arXiv 1210.2823PMID 23373934
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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