publication . Preprint . Article . 2002

From big bang to big crunch and beyond

Eliezer Rabinovici; Shmuel Elitzur; David Kutasov; Amit Giveon;
Open Access English
  • Published: 10 Jun 2002
Abstract
We study a quotient Conformal Field Theory, which describes a 3+1 dimensional cosmological spacetime. Part of this spacetime is the Nappi-Witten (NW) universe, which starts at a ``big bang'' singularity, expands and then contracts to a ``big crunch'' singularity at a finite time. The gauged WZW model contains a number of copies of the NW spacetime, with each copy connected to the preceeding one and to the next one at the respective big bang/big crunch singularities. The sequence of NW spacetimes is further connected at the singularities to a series of non-compact static regions with closed timelike curves. These regions contain boundaries, on which the observabl...
Subjects
arXiv: General Relativity and Quantum CosmologyPhysics::General Physics
free text keywords: High Energy Physics - Theory, Big Bang, Ultimate fate of the universe, Big Bounce, Universe, media_common.quotation_subject, media_common, Initial singularity, Physics, Theoretical physics, Quantum electrodynamics, Gravitational singularity, Big Crunch, Cyclic model
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