Gielen, S. orcid.org/0000-0002-8653-5430 and Sindoni, L. (2016) Quantum cosmology from group field theory condensates : a review. Symmetry, Integrability and Geometry: Methods and Applications (SIGMA), 12 (2016). 082. ISSN 1815-0659
Abstract
We give, in some detail, a critical overview over recent work towards deriving a cosmological phenomenology from the fundamental quantum dynamics of group field theory (GFT), based on the picture of a macroscopic universe as a ''condensate'' of a large number of quanta of geometry which are given by excitations of the GFT field over a ''no-space'' vacuum. We emphasise conceptual foundations, relations to other research programmes in GFT and the wider context of loop quantum gravity (LQG), and connections to the quantum physics of real Bose-Einstein condensates. We show how to extract an effective dynamics for GFT condensates from the microscopic GFT physics, and how to compare it with predictions of more conventional quantum cosmology models, in particular loop quantum cosmology (LQC). No detailed familiarity with the GFT formalism is assumed.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 The Authors. |
Keywords: | group field theory; quantum cosmology; loop quantum gravity |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 04 Oct 2019 09:34 |
Last Modified: | 04 Oct 2019 09:34 |
Status: | Published |
Publisher: | National Academy of Science of Ukraine |
Refereed: | Yes |
Identification Number: | 10.3842/sigma.2016.082 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:151723 |