Tag: general relativity

Theorists have explained why a universe filled with exotic phantom energy oscillates in volume instead of crashing into a singularity, ...

New calculations show that boson stars combining ground-state and excited-state scalar fields undergo a sudden sign flip in their tidal ...

Physicists have derived two new exact static axisymmetric solutions of Entangled Relativity, a non-linear reformulation of general relativity in which ...

A new theoretical analysis derives the precise junction conditions for gluing two different f(R) gravity theories across a shared boundary, ...

A new study calculates how mass-energy across the entire universe cumulatively dilates time on Earth, finding the effect converges in ...

A new theoretical study shows that in unimodular gravity with a spacetime-dependent cosmological term, regular black holes can be supported ...

Theoretical physicists have constructed a consistent effective spacetime metric for bound binary systems at third post-Minkowskian order, improving the analytical ...

Researchers at North Carolina State University have extended a force-based, relativistic reformulation of gravity to many-body systems, showing that frame ...

Theoretical physicists have constructed a new exact solution of Einstein's equations describing a spinning black hole carrying both electric and ...

A new theoretical study shows that a phantom scalar charge smoothly controls the optical geometry, photon-sphere radius, shadow and orbital ...