Tachyons in de Sitter space and analytical continuation from dS/CFT to AdS/CFT

M. Cadoni, P. Carta

We discuss analytic continuation from d-dimensional Lorentzian de Sitter (dS${}_d$) to d-dimensional Lorentzian anti-de Sitter (AdS${}_d$) spacetime. We show that AdS${}_d$, with opp…