Black Component of Dark Matter

Figure 2

Potential possesses one maximum at 𝜒=𝜒_crit and one minimum at 𝜒=𝜒_min. When the field in some region reaches the value 𝜒=𝜒_crit some part of causally independent domains can flip to the other side of the potential with the field value 𝜒>𝜒_crit.