Effective temperature of 2D dusty plasma liquids at the discrete level

Chong Wai Io, Chia Ling Chan, Lin I

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Fluctuation-dissipation theory has been used to measure the effective temperature of non-equilibrium system. In this work, using a 2D dusty plasma liquid formed by the negatively charged fine particles suspending in weakly ionized discharges and sheared by two CW counter parallel laser beams, we measure the micro-transport at the kinetic level. The effective temperatures Teff at different time scales are obtained through the Stokes-Einstein relation which relates the diffusion coefficient (D) and the viscosity (η). The external energy is cascaded from the slow hopping modes to the fast caging modes through mutual coupling, which leads to the higher effective temperature of the slow hopping modes.

Original languageEnglish
Title of host publicationNoise and Fluctuations - 19th International Conference on Noise and Fluctuations, ICNF 2007
Pages310-313
Number of pages4
DOIs
StatePublished - 2007
Event19th International Conference on Noise and Fluctuations, ICNF2007 - Tokyo, Japan
Duration: 9 Sep 200714 Sep 2007

Publication series

NameAIP Conference Proceedings
Volume922
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference19th International Conference on Noise and Fluctuations, ICNF2007
Country/TerritoryJapan
CityTokyo
Period9/09/0714/09/07

Keywords

  • Dusty Plasma Liquids
  • Effective Temperature
  • Fluctuation-Dissipation Theory

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