Tag: general relativity

Bixano and Matos extend the Ernst potential formalism to Einstein-Maxwell gravity coupled to dilatonic or phantom scalar fields, deriving a ...

The distinction between gravitationally bound and unbound configurations sits at the heart of the new results. In Newtonian terms, a ...

A new theoretical analysis shows that quantum effects begin to strongly oppose gravitational collapse exactly at a discontinuous transition called ...

Researchers have constructed an exact rotating dilatonic black hole solution of Einstein–ModMax gravity that admits no Maxwell counterpart, with a ...

A new theoretical study shows that dark matter surrounding black holes subtly alters neutrino flavor oscillations, offering a potential new ...

A new theoretical study shows that near primordial black holes, gravity warps the light cylinder of rotating magnetospheres into a ...

A new theoretical study shows that Einstein–Euler–Heisenberg black holes spontaneously grow scalar hair in two distinct regimes, with the sign ...

A new theoretical study of multi-horizon black holes in nonlinear electrodynamics shows that classically forbidden regions can bounce infalling particles ...

A new theoretical study shows that quantum-electrodynamics-corrected black holes with multiple horizons can spontaneously grow scalar hair, but only within ...

A new theoretical analysis shows that a maximally charged thin shell in Einstein gravity coupled to Born–Infeld electrodynamics can be ...