Quantum maximally symmetric spacetimes
P. Meert (Instituto de Física Teórica, Unesp, São Paulo, 01140-070, Brazil)
; A. Giusti (Department of Physics and Astronomy, University of Sussex, Brighton, BN1 9QH, United Kingdom); R. Casadio (Dipartimento di Fisica e Astronomia, Università di Bologna, via Irnerio 46, 40126 Bologna, Italy, I.N.F.N., Sezione di Bologna, I.S. FLAG, viale B. Pichat 6/2, 40127 Bologna, Italy)
We show that 4-dimensional maximally symmetric spacetimes can be obtained from a coherent state quantisation of gravity, always resulting in geometries that approach the Minkowski vacuum exponentially away from the radius of curvature. A possible connection with the central charge in the AdS/CFT correspondence is also noted.