The scalar spectral index describes the departure of the primordial scalar spectrum from scale invariance. To first order in potential slow-roll parameters,
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Ancestors (12)

  1. Primordial scalar amplitude
  2. Scale-invariant inflationary power spectrum
  3. Bunch-Davies vacuum
  4. Canonically rescaled de Sitter scalar mode
  5. Inflationary scalar Fourier mode
  6. Inflaton action in an expanding universe
  7. Inflaton
  8. Cosmic inflation
  9. Cosmology
  10. Branch of physics
  11. Physics
  12. Home

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