Two-dimensional dS/CFT correspondence
High Energy Physics - Theory
2009-11-07 v1
Abstract
We investigate de Sitter/conformal field theory (dS/CFT) correspondence in two dimensions. We define the conserved mass of de Sitter spacetime and formulate the correspondence along the lines of anti-de Sitter/conformal field theory duality. Asymptotic symmetry group, mass, and central charge of de Sitter spacetime are equal to those of anti-de Sitter spacetime. The entropy of two-dimensional de Sitter spacetime is evaluated by applying Cardy formula. We calculate the boundary correlators induced by the propagation of the dilaton in two-dimensional de Sitter space. Although the dilaton is a tachyonic perturbation in the bulk, boundary conformal correlators have positive dimension.
Cite
@article{arxiv.hep-th/0205211,
title = {Two-dimensional dS/CFT correspondence},
author = {M. Cadoni and P. Carta and M. Cavaglia' and S. Mignemi},
journal= {arXiv preprint arXiv:hep-th/0205211},
year = {2009}
}
Comments
18 pages, Latex file