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Spacetime: Arena or Reality?  H. I. Arcos
; J. G. Pereira
;  Date: 
1 Oct 2007  Abstract:  For small values of the mass (in relation to the angular momentum and
electric charge), the KerrNewman (KN) solution of Einstein equation reduces to
a naked singularity of circular shape. By considering the Hawking and Ellis
extended interpretation of the KN spacetime, as well as Wheeler’s idea of
"charge without charge", the nontrivial topological structure of the extended
KN spatial section is found to represent gravitational states with
halfintegral angular momentum. As a consequence, it can be consistently
interpreted as a model for the electronpositron system, in which the concepts
of mass, charge and spin emerge from the spacetime geometry. According to this
model, therefore, instead of a simple arena, spacetime must have a concrete
existence, being responsible  through its highly nontrivial topological
structures  for the building blocks of (at least some of) the existing matter
in the universe.  Source:  arXiv, 0710.0301  Services:  Forum  Review  PDF  Favorites 


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