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The Endless Universe w/Neil Turok (Cambridge) feynman.princeton.edu/~steinh.

Published byAndrew Randall Modified over 9 years ago

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Presentation on theme: "The Endless Universe w/Neil Turok (Cambridge) feynman.princeton.edu/~steinh."— Presentation transcript:

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2 The Endless Universe w/Neil Turok (Cambridge) feynman.princeton.edu/~steinh

3 Today’s Standard Model (big bang + inflation) big bang inflation

4 Today’s Standard Model (big bang + inflation) big bang inflation V Y New ingredient: Scalar field ( Y)

5 Today’s Standard Model (big bang + inflation) big bang inflation New ingredient: Scalar field ( Y) V Y

6 Wilkinson Microwave Anisotropy Probe

7 radiation matter dark energy ?? Today’s Standard Model (big bang + inflation) big bang inflation

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10 radiation matter dark energy ?? Today’s Standard Model (big bang + inflation) big bang inflation ???

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12 George Lemaitre Albert Einstein

13 t a(t) Richard Tolman

14 a(t) t Richard Tolman

15 Superstring theory “branes” The New Cyclic Universe

16 V Y Y Superstring theory Field theory “branes” The New Cyclic Universe

17 Consensus (big bang + inflation) big bang inflation radiation matter dark energy ?? ??? Cyclic PJS & Neil Turok “bang” radiation matter dark energy “contraction” “crunch” the “bounce”

18 Consensus (big bang + inflation) big bang inflation radiation matter dark energy ?? ??? Cyclic PJS & Neil Turok “bang” radiation matter dark energy “contraction” “crunch” the “bounce” Reproduces successful predictions

19 Consensus (big bang + inflation) big bang inflation radiation matter dark energy ?? ??? Cyclic PJS & Neil Turok “bang” radiation matter dark energy “contraction” “crunch” the “bounce” Fewer ingredients: no need for inflation

20 Consensus (big bang + inflation) big bang inflation radiation matter dark energy ?? ??? Cyclic PJS & Neil Turok “bang” radiation matter dark energy “contraction” “crunch” the “bounce” Dark energy given a purpose

21 Consensus (big bang + inflation) big bang inflation radiation matter dark energy ?? ??? Cyclic PJS & Neil Turok “bang” radiation matter dark energy “contraction” “crunch” the “bounce” Avoids infinities (?)

22 Consensus (big bang + inflation) big bang inflation radiation matter dark energy ?? ??? Cyclic PJS & Neil Turok “bang” radiation matter dark energy “contraction” “crunch” the “bounce” More complete theory of cosmic history

23 Consensus (big bang + inflation) big bang inflation radiation matter dark energy ?? ??? Cyclic PJS & Neil Turok “bang” radiation matter dark energy “contraction” “crunch” the “bounce” Empirically distinguishable: e.g., gravitational waves

24 E-modes (energy fluctuations) B-modes (gravitational waves)

25 CAPMAPCAPMAP the Cosmic Anisotropy Polarization MAPper MAPper DASI, WMAP, Boomerang …. Planck, …. CMBPOL

26 FAQs: feynman.princeton.edu/~steinh/ Violates conservation of energy?Tolman problems?What happens at the bounce?

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