The dynamics at a critical point provides a simple instance of slow collective evolution, characterised by aging phenomena and by a violation of the fluctuation-dissipation relation even for long times. By virtue of the universality in critical phenomena it is possible to provide quantitative predictions for some aspects of these behaviours by field-theoretical methods. We review some of the theoretical results that have been obtained in recent years for the relevant (universal) quantities, such as the fluctuation-dissipation ratio, associated with the non-equilibrium critical dynamics.
|Titolo:||Slow dynamics at critical points: the field-theoretical perspective|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||10.1088/1742-6596/40/1/002|
|Appare nelle tipologie:||1.1 Journal article|