Einstein field equation solutions for exotic spacetime geometries. Mathematical analysis of stress-energy tensors, curvature relations, and metric constraints in general relativity.

When you buy through links on our articles, Future and its syndication partners may earn a commission. An image of a black hole surrounded by matter. Does the secret of quantum gravity lie around ...

Einstein field equation solutions for exotic spacetime geometries. Mathematical analysis of stress-energy tensors, curvature relations, and metric constraints in general relativity. Quantum field ...

More than a century ago, Albert Einstein searched for a single theory that could describe two or more known interactions—electromagnetism, gravity, and the weak and strong forces—previously described ...

During the latter part of the 20th century, string theory was put forward as a unifying theory of physics foundations. String theory has not, however, fulfilled expectations. That is why we are of the ...

A stationary axially symmetric exterior electrovacuum solution of the Einstein-Maxwell field equations was obtained. An interior solution for rotating charged dust with vanishing Lorentz force was ...

This Research Topic, Scalar Fields and the Dark Universe, is a Research Topic of five articles: three reviews and two papers that propose scalar fields as dark matter. Overall, we believe that this is ...

Theoretical physicists have proposed a potential solution to one of the most puzzling problems in modern physics: the black hole singularity paradox. By modifying Einstein's theory of general ...

The General Theory of Relativity is supported by an impressive body of astronomical observation. Relativity explains the orbital eccentricities of Mercury, the “stretching” of light from heavy stars, ...

Can we travel between worlds or even go back in time in the future? Imagine coming across the term “Einstein-Rosen bridge” during a late-night Internet search and wondering what it truly signifies.