Il Nuovo Cimento D

, Volume 16, Issue 7, pp 817–824 | Cite as

Longitudinal collective modes in liquid water

  • U. Balucani
  • G. Ruocco
  • M. Sampoli
  • A. Torcini
  • R. Vallauri


Results of extensive computer simulations performed in liquid water are reported in order to clarify the main features of dynamical density correlations in this system. Puzzling aspects, such as the anomalous sound wave propagation at finite wave vectors, are related to the peculiar structural aspects of this hydrogen-bonded liquid. Additional features (such as the evolution of the relevant memory functions at increasing wave vectors and the emergency of a second mode in the longitudinal current spectra) are also discussed in some detail.

PACS 61.20.Ja

Computer simulation of static and dynamic behavior 

PACS 61.25.Mv

Liquid metals and liquid alloys 

PACS 01.30.Cc

Conference proceedings 


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Copyright information

© Società Italiana di Fisica 1994

Authors and Affiliations

  • U. Balucani
    • 1
  • G. Ruocco
    • 2
  • M. Sampoli
    • 3
  • A. Torcini
    • 1
    • 4
  • R. Vallauri
    • 5
  1. 1.Istituto di Elettronica QuantisticaCNRFirenzeItaly
  2. 2.Dipartimento di Fisica dell’UniversitàL’AquilaItaly
  3. 3.Dipartimento di Energetica dell’UniversitàFirenzeItaly
  4. 4.Dipartimento di Fisica dell’Università e Sezione INFMFirenzeItaly
  5. 5.Dipartimento di Fisica dell’UniversitàPovo (Trento)Italy

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