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Asymptotically Safe Gravity

From Spacetime Foliation to Cosmology

  • Alessia Benedetta Platania
Book
  • 1.7k Downloads

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xv
  2. Asymptotically Safe Quantum Gravity

    1. Front Matter
      Pages 1-1
    2. Alessia Benedetta Platania
      Pages 3-11
    3. Alessia Benedetta Platania
      Pages 13-27
    4. Alessia Benedetta Platania
      Pages 29-46
  3. Asymptotically Safe Gravity on Foliated Spacetimes

    1. Front Matter
      Pages 47-47
    2. Alessia Benedetta Platania
      Pages 49-79
  4. Astrophysical and Cosmological Implications of Asymptotic Safety

    1. Front Matter
      Pages 81-81
    2. Alessia Benedetta Platania
      Pages 83-101
    3. Alessia Benedetta Platania
      Pages 103-118
  5. Conclusions

    1. Front Matter
      Pages 119-119
    2. Alessia Benedetta Platania
      Pages 121-128
  6. Back Matter
    Pages 129-142

About this book

Introduction

This book seeks to construct a consistent fundamental quantum theory of gravity, which is often considered one of the most challenging open problems in present-day physics. It approaches this challenge using modern functional renormalization group techniques, and attempts to realize the idea of “Asymptotic Safety” originally proposed by S. Weinberg. Quite remarkably, the book makes significant progress regarding both the fundamental aspects of the program and its phenomenological consequences. 
The conceptual developments pioneer the construction of a well-behaved functional renormalization group equation adapted to spacetimes with a preferred time-direction. It is demonstrated that the Asymptotic Safety mechanism persists in this setting and extends to many phenomenologically interesting gravity-matter systems. These achievements constitute groundbreaking steps towards bridging the gap between quantum gravity in Euclidean and Lorentzian spacetimes.
The phenomenological applications cover core topics in quantum gravity, e.g. constructing a phenomenologically viable cosmological evolution based on quantum gravity effects in the very early universe, and analyzing quantum corrections to black holes forming from a spherical collapse.
As a key feature, all developments are presented in a comprehensive and accessible way. This makes the work a timely and valuable guide into the rapidly evolving field of Asymptotic Safety.

Keywords

Asymptotic Safety Renormalization Group Quantum Gravity Arnowitt-Deser-Misner (ADM) Formalism Quantum Gravity-matter Systems Cosmological Evolution Foliated Spacetimes Quantum Black Holes Gravitational Collapse Spacetime Singularities

Authors and affiliations

  • Alessia Benedetta Platania
    • 1
  1. 1.Institut für Theoretische PhysikUniversität HeidelbergHeidelbergGermany

Bibliographic information

  • DOI https://doi.org/10.1007/978-3-319-98794-1
  • Copyright Information Springer Nature Switzerland AG 2018
  • Publisher Name Springer, Cham
  • eBook Packages Physics and Astronomy
  • Print ISBN 978-3-319-98793-4
  • Online ISBN 978-3-319-98794-1
  • Series Print ISSN 2190-5053
  • Series Online ISSN 2190-5061
  • Buy this book on publisher's site