Modifications to Cosmological Power Spectra from Scalar-Tensor Entanglement and their Observational Consequences
Abstract
We consider the effects of entanglement in the initial quantum state of scalar and tensor fluctuations during inflation. We allow the gauge-invariant scalar and tensor fluctuations to be entangled in the initial state and compute modifications to the various cosmological power spectra. We compute the angular power spectra ('s) for some specific cases of our entangled state and discuss what signals one might expect to find in CMB data. This entanglement also can break rotational invariance, allowing for the possibility that some of the large scale anomalies in the CMB power spectrum might be explained by this mechanism.
Keywords
Cite
@article{arxiv.1605.01008,
title = {Modifications to Cosmological Power Spectra from Scalar-Tensor Entanglement and their Observational Consequences},
author = {Nadia Bolis and Andreas Albrecht and R. Holman},
journal= {arXiv preprint arXiv:1605.01008},
year = {2017}
}
Comments
29 pages, 15 figures Third version: Published in JCAP. Includes improvements to toy model in Section 5 to better explain origin of oscillations and changes to Appendix C to complement this discussion. The discussion in the final Appendix has also been slightly modified for clarity