Domain-Wall Problem ·
Overclosure
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.com · Z₂ vacua · walls · ρ ∝ 1/t
Zel'dovich '74
σ⅓ ≲ 1 MeV
Wall share
0%
phase
—
Vacuum φ = +v
Vacuum φ = −v
Domain wall (φ = 0)
True vacuum (bias)
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.com · The Cosmic Domain-Wall Problem