Wormholes in ACH Einstein manifolds

Global Embedding of Analytic Branes into ES Einstein MD Bulk Cosmology: Wormholes

Extends results of math-ph/0407067

On the Global Embedding of Spacetime into Singular ES Einstein Manifolds: Wormholes

Extends results of math-ph/0407067

Geometric structures of Morris-Thorne wormhole metric with the semi-symmetric non-metric connections

Spacetime is a 4-dimensional connected Lorentzian manifold. In this paper, we extend the Levi-Civita connection in the definition of spacetime to the semi-symmetric non-metric connection and conclude geometric structures admitted by the metric (1.1) with the semi-symmetric non-metric connections. Obviously, Morris-Thorne spacetime is Ricci generalized pseudosymmetry, Ricci generalized projectively pseudosymmetry, and has conformal 2-forms that are recurrent, etc. It also is an Einstein manifold of level 2 and 3-quasi-Einstein manifold.

受幻影场影响的Einstein-Yang-Mills虫洞

Einstein-Yang-Mills wormholes haunted by a phantom field

该研究在耦合幻影标量场的静态球对称SU(2) Einstein-Yang-Mills理论框架下，严格证明了以Yang-Mills势零点数标记的无穷多对称虫洞解的存在性，并给出了非对称虫洞解存在的数值证据。

Gluing and wormholes for the Einstein constraint equations

We establish a general gluing theorem for constant mean curvature solutions of the vacuum Einstein constraint equations. This allows one to take connected sums of solutions or to glue a handle (wormhole) onto any given solution. Away from this handle region, the initial data sets we produce can be made as close as desired to the original initial data sets. These constructions can be made either when the initial manifold is compact or asymptotically Euclidean or asymptotically hyperbolic, with suitable corresponding conditions on the extrinsic curvature. In the compact setting a mild nondegener…