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Inflation and Branes

Inflation and Branes. Top-down approach to inflation : seeks to embed it in fundamental theory. Bottom-up approach to inflation: reconstruction of acceleration trajectories. Lev Kofman, CITA Nearly Normal Galaxies August 8, 2005, Santa Cruz. Early Universe Inflation.

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Inflation and Branes

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  1. Inflation and Branes Top-downapproach to inflation: seeks to embed it in fundamental theory Bottom-up approach to inflation: reconstruction of acceleration trajectories Lev Kofman, CITA Nearly Normal Galaxies August 8, 2005, Santa Cruz

  2. Early UniverseInflation Scale factor time Realization of Inflation

  3. Particlegenesis time Inflation no entropy no temperature BANG

  4. Decay of inflaton and preheating after inflation Classical Quantum movie Felder, LK, Linde, 01,05

  5. Decay of inflaton and preheating after inflation Classical Quantum

  6. Initial conditions from Inflation inflation Hot FRW

  7. 4 dimensional Inflation predicts No classical inhomogeneities from the past Scale free gaussian fluctuations of all light scalars No vector perturbations Scalar (almost scale free gaussian) metric perturbations Tensor (scale free gaussian) metric perturbations Creation of all SM particles in preheating/thermalization

  8. Inflation in the context of ever changing fundamental theory 1980 -inflation Old Inflation New Inflation Chaotic inflation SUGRA inflation Power-law inflation Double Inflation Extended inflation 1990 Hybrid inflation Assisted inflation SUSY F-term inflation SUSY D-term inflation Brane inflation Super-natural Inflation 2000 SUSY P-term inflation K-flation N-flation DBI inflation inflation Warped Brane inflation Tachyon inflation Racetrack inflation

  9. Search for inflaton with branes in extra dimensions 4-dim picture Dvali,Tye 98

  10. Compactification of inner dimensions with branes Old string theory New phenomenology Strongly warped 5d geometry Randal, Sundrum 99

  11. New ideas about mass hierarchy New ideas about Inflation New ideas about cosmological constant New ideas about 4d gravity New interactions with SM particles

  12. Stabilization of Inner dimensions and moduli in string theory

  13. Realization of String Theory Inflation on the ground of KKLT throat warped geometry KKLMMT03 Hybrid inflation with inflaton fluctuations Mobile brane Conformal coupling problem modulated fluctuations scalar field associated with angular position at Kallosh etal 02 Mukohyama, LK 05 Mobile brane Chaotic inflation

  14. LK, Yi 05 End point of inflation Closed strings Unstable KK modes BANG SM particles Long-living KK modes related to inner isometries Open strings between branes are unstable

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

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

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

  18. ModulatedFluctuations Inflationradiation Light field at inflation LK03, Dvali etal03

  19. 4 dim Inflation in 10dim String Theory predicts All what 4 dim inflation predicts Creation of non-SM particles (KK modes) in reheating/thermalization Short-wavelength gravitational radiation Scale free gaussian fluctuations of many light scalars Modulated cosmological fluctuations String theory Cosmic strings

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

  21. Inflation in the context of ever changing fundamental theory 1980 -inflation Old Inflation New Inflation Chaotic inflation SUGRA inflation Power-law inflation Double Inflation Extended inflation 1990 Hybrid inflation Assisted inflation SUSY F-term inflation SUSY D-term inflation Brane inflation Super-natural Inflation 2000 SUSY P-term inflation K-flation N-flation DBI inflation inflation Warped Brane inflation Tachyon inflation Racetrack inflation

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

  23. Observational constraints on trajectories Markov Chain MonteCarlo

  24. Degeneracy of the Potential Reconstruction

  25. Reconstruction of Inflationary Trajectory

  26. The Parameters of Cosmic Structur Formation Cosmic Numerology: CMBall + LSS, stable & consistent pre-WMAP1 & post-WMAP1 (BCP03), Jun03 data (BCLP04), CMBall+CBIpol04, CMBall+Boom03+LSS Jul’21 05, CMBall Jul05 LSS=2dF, SDSS (weak lensing, cluster abundances); also HST, SN1a As = 22 +- 3 x 10-10 ns = .95 +- .02 (.97 +- .02 with tensor) (+- .004 PL1) At / As < 0.36 95% CL (+- .02 PL2.5+Spider) dns /dln k = -.07 +- .04 to -.05 +- .03 (+- .005 P1) -.002 +- .01 (+Lya McDonald etal 04) (Aiso / As < 0.3 large scale, < 3 small scale niso = 1.1+-.6)

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