Il Nuovo Cimento B (1971-1996)

, Volume 105, Issue 8–9, pp 961–969 | Cite as

Stability of cosmological scalar fields

  • D. Grasso


The Jeans instability criterium is generalized to a coherent scalar field using a quantum approach. A critical analysis of previous works about this matter is performed. The cosmological evolution of the Jeans mass during the dustlike and radiationlike matter-dominated phases of a Friedman universe is obtained. A gauge-invariant approach is used to apply our results to inflationary models.


98.80.Dr Theoretical cosmology 


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Copyright information

© Società Italiana di Fisica 1990

Authors and Affiliations

  • D. Grasso
    • 1
  1. 1.ICRA, International Center for Relativistic Astrophysics Dipartimento di FisicaUniversitd di Roma I «La Sapienza»RomaItalia

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