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      Gravitational waves in preheating

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          Abstract

          We study the evolution of gravitational waves through the preheating era that follows inflation. The oscillating inflaton drives parametric resonant growth of scalar field fluctuations, and although super-Hubble tensor modes are not strongly amplified, they do carry an imprint of preheating. This is clearly seen in the Weyl tensor, which provides a covariant description of gravitational waves.

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          Author and article information

          Journal
          25 February 2000
          10.1088/0264-9381/17/15/303
          gr-qc/0002089
          Custom metadata
          Class.Quant.Grav. 17 (2000) 2875-2884
          8 pages, 8 figures, Revtex
          gr-qc astro-ph hep-ph

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