Strong coupling effects in binary Yukawa systems

Gabor J. Kalman, Zoltán Donkó, Peter Hartmann, Kenneth I. Golden

Research output: Article

8 Citations (Scopus)


We analyze the acoustic collective excitations in two- and three-dimensional binary Yukawa systems, consisting of two components with different masses. A theoretical analysis reveals a profound difference between the weakly and strongly correlated limits: at weak coupling the two components interact via the mean field only and the oscillation frequency is governed by the light component. In the strongly correlated limit the mode frequency is governed by the combined mass, where the heavy component dominates. Computer simulations in the full coupling range extend and confirm the theoretical results.

Original languageEnglish
Article number175003
JournalPhysical review letters
Issue number17
Publication statusPublished - okt. 21 2011

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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