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Quantum Cosmology from Group Field Theory Condensates: a Review
Репозиторій DSpace/Manakin
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- Фізико-технічні та математичні науки
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- Відділення математики
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- Symmetry, Integrability and Geometry: Methods and Applications (SIGMA)
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- Symmetry, Integrability and Geometry: Methods and Applications, 2016, том 12
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Quantum Cosmology from Group Field Theory Condensates: a Review
Інший ID:
2010 Mathematics Subject Classification: 83C45; 83C27; 83F05; 81T27
DOI:10.3842/SIGMA.2016.082
DOI:10.3842/SIGMA.2016.082
Посилання:
Quantum Cosmology from Group Field Theory Condensates: a Review / S. Gielen, L. Sindoni // Symmetry, Integrability and Geometry: Methods and Applications. — 2016. — Т. 12. — Бібліогр.: 135 назв. — англ.
Підтримка:
This paper is a contribution to the Special Issue on Tensor Models, Formalism and Applications. The full
collection is available at http://www.emis.de/journals/SIGMA/Tensor Models.html.
We thank Martin Bojowald, Daniele Oriti, Andreas Pithis and Edward Wilson-Ewing and the
anonymous referees for helpful comments on the manuscript. The research leading to these
results has received funding from the People Programme (Marie Curie Actions) of the European
Union’s Seventh Framework Programme (FP7/2007-2013) under REA grant agreement
n
o 622339 and from the John Templeton Foundation through the grant PS-GRAV/1401.
Дата:
2016
Переглядів:
598
Завантажень:
278
Анотація:
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.
