A Calculation of Cosmic Variance in Cosmic Microwave Background Anisotropy

Abstract

We present a theoretical calculation of the variance $\Delta C_l$ of the CMB anisotropy power spectrum $⟨C_l⟩$ caused by gravitational waves based on quantum field theory in an inflationary cosmology.

Comments: 8 pages, written in RevTeX. An error in the calculation was found and corrected. The conclusion of the paper changed