arXiv:0710.4275·v2·High Energy Physics — Theory
Cosmological Unparticle Correlators
G.L. Alberghi🇮🇹 · A.Yu. Kamenshchik🇮🇹 · A. Tronconi🇮🇹 · G.P. Vacca🇮🇹 · G. Venturi🇮🇹
Abstract
We introduce and study an extension of the correlator of unparticle matter operators in a cosmological environment. Starting from FRW spaces we specialize to a de Sitter spacetime and derive its inflationary power spectrum which we find to be almost flat. We finally investigate some consequences of requiring the existence of a unitary boundary conformal field theory in the framework of the dS/CFT correspondence.
Comments: 8 pages, 1 figure, to appear on Phys. Lett. B