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local non-gaussianity from rapidly varying sound speeds

local non-gaussianity from rapidly varying sound speeds. Jon Emery . with Gianmassimo Tasinato and David Wands. arXiv:1203.6625 - JCAP08(2012)005. COSMO12 – 13/9/2012. introduction. inflation and non-gaussianity breaking the degeneracies. multiple-dbi inflation

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local non-gaussianity from rapidly varying sound speeds

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  1. local non-gaussianity from rapidly varying sound speeds Jon Emery with Gianmassimo Tasinato and David Wands arXiv:1203.6625 - JCAP08(2012)005 COSMO12 – 13/9/2012

  2. introduction inflation and non-gaussianity breaking the degeneracies multiple-dbi inflation affect of multiple sound speeds on local type non-gaussianity COSMO12 – 13/9/2012

  3. inflation and non-gaussianity komatsu et al. (2008) COSMO12 – 13/9/2012

  4. inflation and non-gaussianity komatsu et al. (2008) COSMO12 – 13/9/2012

  5. inflation and non-gaussianity komatsu et al. (2008) COSMO12 – 13/9/2012

  6. inflation and non-gaussianity example: two field inflation byrnes and tasinato (2008) COSMO12 – 13/9/2012

  7. inflation and non-gaussianity example: dbi inflation 6D calabi-yau alishahiha, silverstein and tong (2004) COSMO12 – 13/9/2012

  8. inflation and non-gaussianity problem: degeneracy × × × × × × × × × × × × × × × × × × COSMO12 – 13/9/2012

  9. inflation and non-gaussianity problem: degeneracy × × × × × × × × × × × × × COSMO12 – 13/9/2012

  10. inflation and non-gaussianity wmap: fNL planck: COSMO12 – 13/9/2012

  11. inflation and non-gaussianity vanilla multiple fields non-canonical COSMO12 – 13/9/2012

  12. multiple-dbi inflation vanilla multiple fields non-canonical COSMO12 – 13/9/2012

  13. multiple-dbi inflation vanilla multiple fields non-canonical COSMO12 – 13/9/2012

  14. multiple-dbi inflation choose a model: two field dbi COSMO12 – 13/9/2012

  15. multiple-dbi inflation background:hamilton-jacobi same sound speeds at horizon crossing COSMO12 – 13/9/2012

  16. multiple-dbi inflation perturbations: delta n and separable hubble vernizzi & wands (2006) byrnes & tasinato (2009) COSMO12 – 13/9/2012

  17. multiple-dbi inflation results: analytical expression COSMO12 – 13/9/2012

  18. multiple-dbi inflation results: analytical expression COSMO12 – 13/9/2012

  19. multiple-dbi inflation results: analytical expression COSMO12 – 13/9/2012

  20. multiple-dbi inflation results: analytical expression COSMO12 – 13/9/2012

  21. multiple-dbi inflation results: analytical expression byrnes & tasinato (2009) COSMO12 – 13/9/2012

  22. multiple-dbi inflation results: analytical expression byrnes & tasinato (2009) COSMO12 – 13/9/2012

  23. multiple-dbi inflation results: inflation in two cut-off throats warp factors COSMO12 – 13/9/2012

  24. multiple-dbi inflation results: inflation in two cut-off throats trajectories COSMO12 – 13/9/2012

  25. multiple-dbi inflation results: inflation in two cut-off throats sound speeds COSMO12 – 13/9/2012

  26. multiple-dbi inflation results: inflation in two cut-off throats non-linearity parameter COSMO12 – 13/9/2012

  27. multiple-dbi inflation progress: equilateral contribution third order action path integral formalism seery & lydsey (2005) COSMO12 – 13/9/2012

  28. multiple-dbi inflation progress: equilateral contribution equilateral non-linearity parameter COSMO12 – 13/9/2012

  29. multiple-dbi inflation progress: equilateral contribution equilateral non-linearity parameter COSMO12 – 13/9/2012

  30. conclusions inflation and non-gaussianity breaks the degeneracies of realistic models multiple-dbi inflation rapidly varying sound speeds can produce large local type non-gaussianity COSMO12 – 13/9/2012

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