1 / 64

Astronomy, OFotU

Astronomy, OFotU. The String Landscape & Multiverse, The Anthropic Principle, and Anselm’s Ontological Argument. Dr. Gerald B. Cleaver Wheaton College 26 Mar 2008. Outline. Intro to String Theory Landscape of String Theory Anthropic Principle

emmly
Download Presentation

Astronomy, OFotU

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Astronomy, OFotU The String Landscape & Multiverse, The Anthropic Principle, and Anselm’s Ontological Argument Dr. Gerald B. Cleaver Wheaton College 26 Mar 2008

  2. Outline • Intro to String Theory • Landscape of String Theory • Anthropic Principle • Anselm’s Ontological Argument

  3. 500 Physicists seeking Einstein’s final goal the Theory of Everything (Physical) Scientific Understanding of Universe Sought in String (M) Theory

  4. Science Fiction has become Science • Extra Dimensions (7 to be exact) • Parallel Universes (at least 1 + maybe a few more) • Multiple Universes (perhaps ~ 10100 to 500) • Warped Spacetime • Time before Time • Future for the Universe

  5. String Theory implies nature of reality & existence is more complex … more beautiful … yet more simple … then ever imagined before!

  6. Visible Universe 13.7 billion light years In diameter = 8 x1022 mi trillion galaxies, trillion stars per galaxy

  7. All Matter & Forces in the UniverseUnified by String Theory

  8. Particles & ForcesLike Notes on a Violin String B A ♪♫ ♪♫ C D G ♪♫ ♪♫ ♪♫ ♪♫ E F

  9. String Interactions consistent w/ Relativity Astronomy, OFotU

  10. Quantum MechanicsRequires String Theory w/9 + 1 Dimensional Spacetime Astronomy, OFotU

  11. Strings have two vibrations – CW & CCW Spin = # of Vibrations in our 3+1 Dim. Spacetime Gravitons = Spin 2 Particles = Strings w/ both vibes in 3+1 Dim S-T Photons, Gluons, W+,-, Z (non-grav. force part.) = Spin 1 Particles = Strings w/ 1 vibe in 3+1 Dim S-T & 1 vibe in 6 Dim Comp Space SUSY- Matter = Spin 0 Particles = Strings w/ both vibes in 6 Dim Comp Space

  12. 9 Dim  3 Large Dim + 6 Compact Dim Products of 6 Circular Directions Forming Spherical Toroidal or Too Simple!

  13. too simple to result in Either the matter particles that exist … Sean Carroll, From the Universe to the Laboratory, http://pancake.uchicago.edu/~carroll

  14. Or the force carrying particles … So more complex shapes investigated … S. Carroll, http://pancake.uchicago.edu/~carroll

  15. RequireCalabi-Yau Compactification Shape from 6 Compactified Dimensions 2 Dim Surface C-Y Surface—Need to extend to 6 Dim

  16. Energy Modes R. Brandenberger jpierre

  17. String Duality R. Brandenberger

  18. Finite Initial Size and Temperature of Universe R. Brandenberger

  19. Nagging Problem for 1st Decade (1985-95):Not Just 1 10-Dimensional String Theory But 5! www.sukidog.com/jpierre/strings/

  20. Solution: Duality (Equality) of All 5 String Theories www.sukidog.com/jpierre/strings/

  21. Each ‘Theory” is SAME THEORY IN DIFFERENTMATHEMATICAL LANGUAGE א O Ω Й ڜ www.sukidog.com/jpierre/strings/

  22. www.sukidog.com/jpierre/strings/ Membrane String   w/ 10 Dim w/ 11 Dim

  23. Two 9-brane “Universes”= “Us & Them”and extra dimension between R. Brandenberger

  24. Compactify 6 of the 9 Spatial Directions of each Brane as Before

  25. Effective 5-Dimensional Theory Horava et al.

  26. Size of 5th Dimension? 10-33 cm < y < 0.1 mm Horava et al.

  27. S. Carroll, http://pancake.uchicago.edu/~carroll

  28. Tests for sub-mm.directions Fgrav = -Gm1m2/r2 -Gm1m2/r2+n 1/r2 form of gravity being tested. Standard gravity verified down to 0.15 mm at Univ. of Wash. with 97% confidence level

  29. Manufacturing of Stringy Blackholes! • If sub-mm. dimension then it may be possible to produce gravitons and mini-black holes (with peco-second half-lives) at Fermilab & CERN this decade! • Mini-black holes have distinct decays —easily identifiable! • Black Holes Detectors for Fermilab and CERN

  30. Proposed Explanation for Big BangImplying Time Before Time!

  31. Single Event Astronomy, OFotU Astronomy, OFotU Cyclical Events

  32. The colliding Branes would not remain perfectly flat as they approach each other due to quantum effects. Big Bang Inflations occurs in bumps on Branes that collide first. Multiple, separated, Big Bang regions might have been formed from distinct collision points of Branes! Multiple universes on our Brane besides 1+ Parallel Branes along an extra spatial direction 

  33. S. Carroll, http://pancake.uchicago.edu/~carroll

  34. S. Carroll, http://pancake.uchicago.edu/~carroll

  35. S. Carroll, http://pancake.uchicago.edu/~carroll

  36. S. Carroll, http://pancake.uchicago.edu/~carroll

  37. S. Carroll, http://pancake.uchicago.edu/~carroll

  38. Present view of universe from Milky Way You are here ↓

  39. Future view of universe from Milky Way, in ~ 1 Trillion Years

  40. Milky Way torn up in a few more 100 Billion Years

  41. Solar system torn apart in a few more 10 Billion Years

  42. New Scientist, 5 Feb 2005

  43. S. Carroll, http://pancake.uchicago.edu/~carroll

  44. S. Carroll, http://pancake.uchicago.edu/~carroll

  45. S. Carroll, http://pancake.uchicago.edu/~carroll

More Related