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Exploring Cosmic Fluctuations: Insights from Scanning Inflation and Extra Dimensions

This paper delves into the intricate world of cosmic fluctuations within the framework of practical cosmology. Focusing on scanning inflation, we explore the impact of extra dimensions on the universe's fluctuations and the gravitational instability of anisotropic geometries. Analyzing diverse inflationary trajectories, we assess observational constraints and the generic properties of fluctuations in models with compactification. By employing tools like Markov Chain Monte Carlo, we uncover potential observables related to varying couplings and primordial fluctuations, paving the way for deeper insights into the landscape of cosmological theories.

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Exploring Cosmic Fluctuations: Insights from Scanning Inflation and Extra Dimensions

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  1. Landscape days in Practical Cosmology

  2. Landscape days in Practical Cosmology AfterYearsofSelf-reproducing InflationaryUniverseinCosmology

  3. Fluctuations in the Universe with Compact Extra Dimensions Scanning Inflation Modulated Fluctuations L. Kofman CITA Perimeter, March 2005

  4. Fluctuations in Cosmology with Compactification string theorist CY AdS 3+1 FRW

  5. Fluctuations in Cosmology with Compactification string theorist CY cosmologist CY 3+1 FRW AdS 3+1 FRW

  6. Fluctuations in Cosmology with Compactification string theorist CY cosmologist CY 3+1 FRW AdS 3+1 FRW CY +fluctuations Practical cosmologist 3+1FRW +fluctuations

  7. background fluctuations

  8. Fluctuations in Cosmology with Compactification

  9. Gravitational instability of anysotropoc geometry

  10. Too strong fluxes lead to new instability

  11. Summary Theory of cosmological fluctuations in models with extra dimensions Generic properties of fluctuations in 3+1+d dim Instabilities exclude regions of landscape Constraints on working stabilization Potential observables: varying couplings/masses, Primordial fluctuations

  12. Scanning Inflation R.Bond, C.Contaldi, A.Frolov, L.Kofman T.Souradeep P.Vandrevange Bottom-up

  13. Inflaton Landscape@ Mont Tremblant scanning acceleration histories

  14. Ensemble of Inflationary trajectories Chebyshev decomposition Space of models opens wide

  15. Observational constraints on trajectories Markov Chain MonteCarlo

  16. Degeneracy of the Potential Reconstruction

  17. ModulatedFluctuations Inflationradiation Light field at inflation

  18. Modulated fluctuations in Hybrid Inflation inhomogeneouswaterfall movie

  19. Tachyonic Preheating

  20. Modulated fluctuations in Chaotic Inflation Resonant Preheating

  21. Modulated fluctuations in Chaotic Inflation

  22. Zoology of Cosmic Fluctuations Scanning Inflation Modulated Fluctuations Fluctuations in the Universe with Compact extra dimension L. Kofman CITA Lancaster, March 2005

  23. Some Movie

  24. Inflaton Landscape@ Mont Tremblant scanning acceleration histories

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