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Particle Physics and Cosmology Inflation.

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Presentation on theme: "Particle Physics and Cosmology Inflation."— Presentation transcript:

1 Particle Physics and Cosmology Inflation

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7 Friedman Universe : horizon grows with time

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12 flatness problem

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14 Ω=1 : unstable fixed point

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19 inflationary kinematics

20 exponential inflation

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22 end of inflation when ν gets < 1

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24 e - foldings

25 inflationary cosmology with scalar field inflationary cosmology with scalar field

26 energy density and pressure crucial ingredient : shape of scalar potential V

27 field equations

28 flat region in potential change of scalar is small effect, V,H essentially constant

29 slow roll parameters

30 single field inflation if

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32 slow roll approximation

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34 ν ≈ - ε

35 chaotic inflation

36 slow roll condition

37 scales of fluctuations first out last in

38 e - foldings

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