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Simulation
Axion Domain Wall Animate!
2+1 Dimension Domain wall collapsing in the expanding universe
y- and x-axis are 2 spatial coordinate,
Color corresponds to field value,
Black/Cyan are false vacuum
Blue is true vacuum
3+1 Dimension Domain wall collapsing in the expanding universe
x, y, and z axis are 3 spatial coordinates,
Color corresponds to field value,
Yellow is false vacuum
White is true vacuum
Ture Domain Wall, because some simulation difficulties,
we can only simulate it up to the time that shortly after
domian wall formation
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