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Asymptotically Safe Gravity : From Spacetime Foliation to Cosmology / by Alessia Benedetta Platania

By: Resource type: Ressourcentyp: Buch (Online)Book (Online)Language: English Series: Springer Theses, Recognizing Outstanding Ph.D. Research | SpringerLink BücherPublisher: Cham : Springer International Publishing, 2018Description: Online-Ressource (XV, 142 p. 87 illus., 13 illus. in color, online resource)ISBN:
  • 9783319987941
Subject(s): Additional physical formats: 9783319987934 | 9783319987958 | Erscheint auch als: 978-3-319-98793-4 Druck-Ausgabe | Printed edition: 9783319987934 | Printed edition: 9783319987958 DDC classification:
  • 530.1
MSC: MSC: *83-02 | 83C45 | 81T17 | 00A79 | 83F05 | 85A40 | 83C57 | 83C75LOC classification:
  • QC178 QC173.5-173.65
  • QC178
  • QC173.5-173.65
DOI: DOI: 10.1007/978-3-319-98794-1Online resources: Summary: 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 SafetySummary: Part I: Asymptotically Safe Quantum Gravity -- The Wilsonian Idea of Renormalization -- Functional Renormalization and Asymptotically Safe Gravity -- Part II: Asymptotically Safe Gravity on Foliated Spacetimes -- Quantum Gravity on Foliated Spacetimes -- Part III: Astrophysical and Cosmological Implications of Asymptotic Safety -- Inflationary Cosmology from Quantum Gravity-matter Systems -- Quantum Black Holes and Spacetime Singularities -- ConclusionsPPN: PPN: 1031835733Package identifier: Produktsigel: ZDB-2-PHA | ZDB-2-SEB | ZDB-2-SXP
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