Il Nuovo Cimento B (1971-1996)

, Volume 48, Issue 2, pp 189–198 | Cite as

On the bulk viscosity of relativistic matter

  • V. Canuto
  • S. -H. Hsieh


An expression for the bulk viscosity coefficient in terms of the trace of the hydrodynamic energy-stress tensor is derived from the Kubo formula. This, along with a field-theoretic model of an interacting system of scalar particles, suggests that at high temperatures the bulk viscosity tends to zero, contrary to the often quoted results of Iso, Mori and Namiki.

Об объемной вязкости релятивистского вещества


Из формулы Кубо выводится выражение для коэффициента объемной вязкости. Таким образом, модель теории поля для системы взаимодействующих скалярных частиц предполагает, что при высоких температурах объемная вязкость стремится к нулю, в противоположность часто цитируемому результату Изо, Мори и Намики.


Si deriva dalla formula di Kubo un–espressione per il coefficiente della viscosità di volume sulle basi della traccia del tensore idrodinamico di sforzo-energia. Questa, insieme con un modello di teoria dei campi di un sistema interagente di particelle scalari, suggerisce che ad alte temperature la viscosità di volume scenda a zero, contrariamente agli spesso citati risultati di Iso, Mori e Namiki.


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Copyright information

© Società Italiana di Fisica 1978

Authors and Affiliations

  • V. Canuto
    • 1
    • 2
  • S. -H. Hsieh
    • 1
  1. 1.NASA Goddard Institute for Space StudiesGoddard Space Flight CenterNew York
  2. 2.Department of PhysicsCCNYNew York

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