Conformal scalar fields, isotropic singularities and conformal cyclic cosmologies
@inproceedings{Lubbe2013ConformalSF, title={Conformal scalar fields, isotropic singularities and conformal cyclic cosmologies}, author={Christian Lubbe}, year={2013} }
We analyse spacetimes with a conformal scalar field source, a cosmological constant and a quartic self-interaction term for the scalar field. We also consider additional matter contents in the form of Maxwell and Yang-Mills fields or radiation fluids. Existence theorems for weakly asymptotically flat spacetimes are given. We give a generalisation of Bekenstein’s result [Ann. Phys. 82, 535 (1974)] and use it to derive existence theorems for spacetimes that contain an isotropic singularity. The…
8 Citations
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We inspect the basic ideas underlying Roger Penrose’s Conformal Cyclic Cosmology from the perspective of modern quantum information. We show that the assumed loss of degrees of freedom in black holes…
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In these lectures my aim is to review enough of conformal differential geometry in four dimensions to give an account of Penrose’s conformal cyclic cosmology. 1 Tensor calculus and conformal…
The equations of Conformal Cyclic Cosmology
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I review the equations of Conformal Cyclic Cosmology given by Penrose (Cycles of time: an extraordinary new view of the universe. Bodley Head, London, 2010). Motivated by the example of FRW…
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The possibility that twin universes having a dual structure of (matter with (dark energy and matter)) vs. corresponding anti-entities, separated by an event horizon embedded in the geometric structure of de Sitter space, undergo endless cyclic processes of birth and death is shown.
Introduction and sketch of Conformal Cyclic Cosmology
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This article is an extended version of a talk given in Oxford in June 2021 as part of an online meeting ‘Ninety minutes of CCC’ to mark the 90th birthday of Sir Roger Penrose. I assemble some…
Smooth Non-Zero Rest-Mass Evolution Across Time-Like Infinity
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It is shown that solutions to Einstein’s field equations with positive cosmological constant can include non-zero rest-mass fields which coexist with and travel unimpeded across a smooth conformal…
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