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General Relativity and Gravitation

, Volume 20, Issue 2, pp 183–190 | Cite as

Late-time behavior of primordial gravitational waves in expanding universe

  • Alexander Feinstein
Research Articles

Abstract

The results of two different approaches to the late-time behavior of primordial gravitational radiation are compared. Using asymptotic expansion in time of the tetrad components of the Riemann tensor one finds that initially chaotic behavior transfers itself into a radiative gravitational field of Petrov typeN ast→∞. On the other hand, to accomplish the physical picture, we study the high-frequency behavior of the field variables in the same formalism. We show that the background spacetime is of general Petrov type I, and then calculate the tetrad components of the stress-energy tensor induced by the “disappeared” radiation with the help of Newman-Penrose equations.

Keywords

Radiation Asymptotic Expansion Differential Geometry Gravitational Field Gravitational Wave 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1988

Authors and Affiliations

  • Alexander Feinstein
    • 1
  1. 1.Theoretical Astronomy Unit School of Mathematical Sciences, Queen Mary CollegeUniversity of LondonLondonEngland

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