Type-II Weyl Semimetal versus Gravastar

The boundary between the type I and II Weyl semimetals serves as event horizon for "relativistic" fermions. interior of black hole is represented by semimetal, where Fermi surface formed. process filling electrons results in relaxation inside horizon. This leads to Hawking radiation reconstruction vacuum state. After fully occupied, region reaches equilibrium state, which absent. If this scenario applicable real hole, then final state will be dark energy star with Inside one would have de Sitter space time, separated from shell Planck length width. Both part are made fields without matter. distinct gravastar, matter outside "horizon", we call gravastar. But similar other horizon, We suggest study structure gravastar using $q$-theory, variable 4-form field introduced phenomenological description quantum vacuum.