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Is it possible the Black Holes to be pure deformations in the fabric of spacetime and not an effect of super-dense matter?

Is there any theory in the literature that supports this hypothesis that BHs in their center do not have a super dense matter singularity but are pure deformations in the fabric of spacetime itself or ...
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2 votes

Is it possible the Black Holes to be pure deformations in the fabric of spacetime and not an effect of super-dense matter?

Your explanation in your comment: My definition is the absence of spacetime or vacuum space inside the event horizon will not work. If this were correct then the whole event horizon would be a ...
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1 vote
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Electromagnetic wave in vacuum - Do we have always ${\bf E}\cdot {\bf B} = 0$ and $E = cB$?

Although $E\cdot B,\,E^2-c^2B^2$ are invariant (they're respectively proportional to $\epsilon^{\mu\nu\rho\sigma}F_{\mu\nu}F_{\rho\sigma},\,F_{\mu\nu}F^{\mu\nu}$), neither is $0$ for all solutions of ...
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1 vote

Does the vacuum have a heat capacity ratio? Since there is nothing to 'warm' up

The correct answer is $γ=NaN$. That is to say there's not exactly one correct value. Imagine you take a gas and then expand its volume to an astronomical degree. What you've created is effectively an ...
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