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.
Cosmological Unparticle Correlators / G.L. Alberghi; A.Yu. Kamenshchik; A. Tronconi; G.P. Vacca; G. Venturi. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 662:(2008), pp. 66-70. [10.1016/j.physletb.2008.01.076]
Cosmological Unparticle Correlators
ALBERGHI, GIAN LUIGI;KAMENCHTCHIK, ALEXANDR;TRONCONI, ALESSANDRO;VENTURI, GIOVANNI
2008
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
