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Holographic no-boundary measure
Hertog T., Hartle J.
Journal of High Energy Physics 05 (2012) 095 - http://hal.in2p3.fr/in2p3-00722566
Physique/Physique des Hautes Energies - Théorie
Physique/Relativité Générale et Cosmologie Quantique
Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique
Holographic no-boundary measure
T. Hertog1, 2, J. Hartle
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
http://www.apc.univ-paris7.fr/
CNRS : UMR7164 – IN2P3 – Observatoire de Paris – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
APC - UMR 7164, Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, case postale 7020, F-75205 Paris Cedex 13
France
2 :  International Solvay Institutes
International Solvay Institutes
Boulevard du Triomphe ULB-C.P.231, B-1050 Brussels
Belgique
APC - THEORIE
We show that the complex saddle points of the no-boundary wave function with a positive cosmological constant and a positive scalar potential have a representation in which the geometry consists of a regular Euclidean AdS domain wall that makes a smooth transition to a Lorentzian, inflationary universe that is asymptotically de Sitter. The transition region between AdS and dS regulates the volume divergences of the AdS action and accounts for the phases that explain the classical behavior of the final configuration. This leads to a dual formulation in which the semiclassical no-boundary measure is given in terms of the partition function of field theories on the final boundary that are certain relevant deformations of the CFTs that occur in AdS/CFT. We conjecture that the resulting dS/CFT duality holds also beyond the leading order approximation.

Articles dans des revues avec comité de lecture
05/2012
Journal of High Energy Physics
Publisher Institute of Physics (IOP)
ISSN 1126-6708 (eISSN : 1029-8479)
05
095

Gauge-gravity correspondence – AdS-CFT Correspondence – Models of Quantum Gravity
Lien vers le texte intégral : 
http://fr.arXiv.org/abs/1111.6090