Universe or Multiverse

  title={Universe or Multiverse},
  author={Bernard J. Carr and George F R Ellis},
Bernard Carr and George Ellis present their differing views on whether speculations about other universes are part of legitimate science. 
The case for a closed universe
George Ellis and Julien Larena highlight the possibility that the universe could be curved and closed, and explore the theoretical importance of this possibility.
Birth of the Universe From the Multiverse
This proceeding is based on a talk I gave at the 13th Marcel Grossmann Meeting in Stockholm Sweden.
Entropy-Growth in the Universe: Some Plausible Scenarios
Diverse measurements indicate that entropy grows as the universe evolves, we analyze from a quantum point of view plausible scenarios that allow such increase.
Cosmological acceleration
An overview is given of the current status of the theory and observations of the acceleration of the expansion of the observable part of the Universe.
Physics in the multiverse: an introductory review
This brief note, written for non-specialists, aims at drawing an introductive overview of the multiverse issue.
Model of a multi-element universe
New exact models of a multi-element Universe consisting of an infinite number of elements with different physical properties are considered.
Editorial note to: Brandon Carter, Large number coincidences and the anthropic principle in cosmology
This is an editorial note to accompany reprinting as a Golden Oldie in the Journal of General Relativity and Gravitation of the famous paper by Brandon Carter on the anthropic principle in cosmology
Multiverses, Science, and Ultimate Causation
This chapter reviews the motivation and evidence for the various types of multiverses that have been proposed, and suggests none is conclusive, although there is one case where they could be disproved.
The Standard Cosmological Model: Achievements and Issues
  • G. Ellis
  • Education
    Foundations of Physics
  • 2018
The present day standard cosmological model is a great theoretical achievement. This chapter surveys the main themes that have arisen and issues that are still oustanding.
Conceptual Challenges on the Road to the Multiverse
The current debate about a possible change of paradigm from a single universe to a multiverse scenario could have deep implications on our view of cosmology and of science in general. These


Living in the Multiverse
This is the written version of the opening talk at the symposium "Expectations of a Final Theory," at Trinity College, Cambridge, on September 2, 2005. It is to be published in Universe or
The fabric of reality : the science of parallel universes-- and its implications
The Fabric of Reality" Oxford scholar David Deutsch shows that quantum physics, evolution, computation, and knowledge are so closely intertwined that the authors cannot properly understand any one of them without reference to the other three.
Eternally existing self-reproducing chaotic inflanationary universe
Our cosmic habitat
Our universe seems strangely 'biophilic,' or hospitable to life. Is this providence or coincidence? According to Martin Rees, the answer depends on the answer to another question, the one posed by
Multiverses and physical cosmology
The idea of a multiverse – an ensemble of universes – has received increasing attention in cosmology, both as the outcome of the originating process that generated our own universe, and as an
An Alternative to compactification
Conventional wisdom states that Newton's force law implies only four noncompact dimensions. We demonstrate that this is not necessarily true in the presence of a nonfactorizable background geometry.
Large Number Coincidences and the Anthropic Principle in Cosmology
Prof. Wheeler has asked me to say something for the record about some ideas that I once suggested (at the Clifford Memorial meeting in Princeton in 1970) and to which Hawking and Collins have
The anthropic principle and the structure of the physical world
The basic features of galaxies, stars, planets and the everyday world are essentially determined by a few microphysical constants and by the effects of gravitation. Many interrelations between
Birth of inflationary universes
A cosmological model is proposed in which the Universe is created by quantum tunneling from ''nothing'' into a de Sitter space. The tunneling is described by a de Sitter-- p Hawking--Moss instanton.
God and Design : The Teleological Argument and Modern Science
I GENERAL CONSIDERATIONS 1. The Design Argument 2. The Meaning of Design 3. The Design Inference: Old Wine in New Wineskins 4. God by Design 5. The Argument to God from Fine-tuning Reassessed 6.