Power Spectrum
Cl = <|a_lm|²>
D_l = l(l+1)Cl/2π
1st peak: ℓ ≈ 220
θ_s ≈ 1°/√(Ω_m)
Peak ratio → Ω_b:
Higher Ω_b → boosts
odd peaks, suppresses
even peaks
Silk damping:
exp(-(ℓ/ℓ_D)²)
ℓ_D ≈ 1500
SW plateau:
Cl ≈ const (ℓ < 30)
from inflation
Cl = <|a_lm|²>
D_l = l(l+1)Cl/2π
1st peak: ℓ ≈ 220
θ_s ≈ 1°/√(Ω_m)
Peak ratio → Ω_b:
Higher Ω_b → boosts
odd peaks, suppresses
even peaks
Silk damping:
exp(-(ℓ/ℓ_D)²)
ℓ_D ≈ 1500
SW plateau:
Cl ≈ const (ℓ < 30)
from inflation