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Non-perturbative Methods for False Vacuum Decay in Early Universe Phase Transitions
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- 1 Intro
- 2 Probing the early universe with gravitational waves
- 3 GWs from phase transitions: theory + experiment
- 4 Theoretical outlook: work to do
- 5 False vacuum decay in the direct method
- 6 Perturbative approach: saddle point
- 7 Perturbative approach: one loop
- 8 Beyond perturbation theory: exact effective actions
- 9 BUT: exact effective actions are convex
- 10 Imperfect compromise: coarse graining
- 11 Back to the drawing board: quasi-stationary patches
- 12 Our proposal: the quasi-stationary effective action
- 13 The correct effective action for FV decay
- 14 Non-perturbative implementation: the FRG for fluctuations
- 15 Understanding the flow equation: comparison with coarse-graining
- 16 Solving the flow equation
- 17 Results and comparison with perturbation theory
- 18 The big point: decay rates for strong interactions
- 19 Understanding the fFRG flow
