3 papers
hep-th1993
Black Holes, Wormholes, and the Disappearance of Global Charge
Sidney Coleman, Shane Hughes
One of the paradoxes associated with the theory of the formation and subsequent Hawking evaporation of a black hole is the disappearance of conserved global charges. It has long be…
hep-th1993
Rings and Balls
Lee Brekke, Shane J. Hughes, Tom D. Imbo
We examine the various linkings in space-time of ``ball-like'' and ``ring-like'' topological solitons in certain nonlinear sigma models in 2+1 and 3+1 dimensions. By going to theor…
gr-qc1992
Weak-Field Gravity of Circular Cosmic Strings
Shane J. Hughes, Des J. Mc Manus, Michel A. Vandyck
A weak-field solution of Einstein's equations is constructed. It is generated by a circular cosmic string externally supported against collapse. The solution exhibits a conical sin…