Inflation, infinity, equilibrium and the observable Universe Andreas Albrecht UC Davis - PowerPoint PPT Presentation

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Inflation, infinity, equilibrium and the observable Universe Andreas Albrecht UC Davis

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  1. Inflation, infinity, equilibrium and the observable Universe Andreas Albrecht UC Davis UCD Colloquium October 3, 2011 A. Albrecht @ UCD 10/3/11

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  3. Cosmic Inflation: • Great phenomenology, but • Original goal of explaining why the cosmos is *likely* to take the form we observe has proven very difficult to realize. A. Albrecht @ UCD 10/3/11

  4. Cosmic Inflation: • Great phenomenology, but • Original goal of explaining why the cosmos is *likely* to take the form we observe has proven very difficult to realize. This Talk A. Albrecht @ UCD 10/3/11

  5. Cosmic Inflation: • Great phenomenology, but • Original goal of explaining why the cosmos is *likely* to take the form we observe has proven very difficult to realize. • OR: Just be happy we have equations to solve? A. Albrecht @ UCD 10/3/11

  6. OUTLINE Big Bang & inflation basics Eternal inflation de Sitter Equilibrium cosmology Cosmic curvature from de Sitter Equilibrium cosmology A. Albrecht @ UCD 10/3/11

  7. OUTLINE Big Bang & inflation basics Eternal inflation de Sitter Equilibrium cosmology Cosmic curvature from de Sitter Equilibrium cosmology A. Albrecht @ UCD 10/3/11

  8. Friedmann Eqn. A. Albrecht @ UCD 10/3/11

  9. Friedmann Eqn. Curvature A. Albrecht @ UCD 10/3/11

  10. Friedmann Eqn. Curvature Relativistic Matter A. Albrecht @ UCD 10/3/11

  11. Friedmann Eqn. Curvature Non-relativistic Matter Relativistic Matter A. Albrecht @ UCD 10/3/11

  12. Friedmann Eqn. Dark Energy Curvature Non-relativistic Matter Relativistic Matter A. Albrecht @ UCD 10/3/11

  13. A. Albrecht @ UCD 10/3/11

  14. A. Albrecht @ UCD 10/3/11

  15. A. Albrecht @ UCD 10/3/11

  16. The curvature feature/“problem” A. Albrecht @ UCD 10/3/11

  17. The curvature feature/“problem” ! A. Albrecht @ UCD 10/3/11

  18. The curvature feature/“problem” ! A. Albrecht @ UCD 10/3/11

  19. The curvature feature/“problem” ! A. Albrecht @ UCD 10/3/11

  20. The curvature feature/“problem” A. Albrecht @ UCD 10/3/11

  21. The curvature feature/“problem” ! A. Albrecht @ UCD 10/3/11

  22. The monopole “problem” A. Albrecht @ UCD 10/3/11

  23. The monopole “problem” ! A. Albrecht @ UCD 10/3/11

  24. Friedmann Eqn. Dark Energy Curvature Non-relativistic Matter Relativistic Matter A. Albrecht @ UCD 10/3/11

  25. Now add cosmic inflation Friedmann Eqn. Dark Energy Inflaton Curvature Non-relativistic Matter Relativistic Matter A. Albrecht @ UCD 10/3/11

  26. Now add cosmic inflation Friedmann Eqn. Dark Energy Inflaton Curvature Non-relativistic Matter Relativistic Matter A. Albrecht @ UCD 10/3/11

  27. The inflaton: ~Homogeneous scalar field obeying Cosmic damping Coupling to ordinary matter All potentials have a “low roll” (overdamped) regime where A. Albrecht @ UCD 10/3/11

  28. The inflaton: ~Homogeneous scalar field obeying Cosmic damping Coupling to ordinary matter All potentials have a “low roll” (overdamped) regime where A. Albrecht @ UCD 10/3/11

  29. Add a period of Inflation: A. Albrecht @ UCD 10/3/11

  30. With inflation, initially large curvature is OK: A. Albrecht @ UCD 10/3/11

  31. With inflation, early production of large amounts of non-relativistic matter (monopoles) is ok : A. Albrecht @ UCD 10/3/11

  32. Inflation detail: A. Albrecht @ UCD 10/3/11

  33. Inflation detail: A. Albrecht @ UCD 10/3/11

  34. Hubble Length A. Albrecht @ UCD 10/3/11

  35. Hubble Length (aka ) A. Albrecht @ UCD 10/3/11

  36. A. Albrecht @ UCD 10/3/11

  37. A. Albrecht @ UCD 10/3/11

  38. A. Albrecht @ UCD 10/3/11

  39. A. Albrecht @ UCD 10/3/11

  40. A. Albrecht @ UCD 10/3/11

  41. A. Albrecht @ UCD 10/3/11

  42. A. Albrecht @ UCD 10/3/11

  43. A. Albrecht @ UCD 10/3/11

  44. A. Albrecht @ UCD 10/3/11

  45. A. Albrecht @ UCD 10/3/11

  46. A. Albrecht @ UCD 10/3/11

  47. End of inflation A. Albrecht @ UCD 10/3/11

  48. End of reheating A. Albrecht @ UCD 10/3/11