Cosmological Avatars of the Landscape II: CMB and LSS Signatures

Abstract

This is the second paper in the series that confronts predictions of a model of the landscape with cosmological observations. We show here how the modifications of the Friedmann equation due to the decohering effects of long wavelength modes on the wavefunction of the Universe defined on the landscape leave unique signatures on the CMB spectra and large scale structure (LSS). We show that the effect of the string corrections is to suppress ${\sigma }_8$ and the CMB $TT$ spectrum at large angles, thereby bringing WMAP and SDSS data for ${\sigma }_8$ into agreement. We find interesting features imprinted on the matter power spectrum $P(k)$: power is suppressed at large scales indicating the possibility of primordial voids competing with the ISW effect. Furthermore, power is enhanced at structure and substructure scales, $k\simeq 10^{-2-0}h{\mathrm{Mpc}}^{-1}$. Our smoking gun for discriminating this proposal from others with similar CMB and LSS predictions come from correlations between cosmic shear and temperature anisotropies, which here indicate a noninflationary channel of contribution to LSS, with unique ringing features of nonlocal entanglement displayed at structure and substructure scales.

7 pages, 4 figures

References in corpus (5)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Cosmological Constraints from the SDSS Luminous Red Galaxies
• Local Voids as the Origin of Large-angle Cosmic Microwave Background Anomalies I
• Cosmological Avatars of the Landscape I: Bracketing the SUSY Breaking Scale
• Cosmological Implications of the String Theory Landscape

Cited by in corpus (16)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Bell violation in primordial cosmology
• 'Tilting' the Universe with the Landscape Multiverse: The 'Dark' Flow
• Testing Predictions of the Quantum Landscape Multiverse 2: The Exponential Inflationary Potential
• Testing Predictions of the Quantum Landscape Multiverse 1: The Starobinsky Inflationary Potential
• Cosmological Avatars of the Landscape I: Bracketing the SUSY Breaking Scale
• Predictions of the Quantum Landscape Multiverse
• A new mechanism for non-locality from string theory: UV-IR quantum entanglement and its imprints on the CMB
• Dark Energy Cosmology with the Alternative Cosmic Microwave Background Data
• 21-cm Lensing and the Cold Spot in the Cosmic Microwave Background
• Conceptual Challenges on the Road to the Multiverse
• Entanglement entropy at critical points of classical evolution in oscillatory and exotic singularity multiverse models
• Doubleverse entanglement in third quantized non-minimally coupled varying constants cosmologies
• Observational consequences of an interacting multiverse
• Birth of the Universe from the Multiverse, MG13
• Decaying universes and the emergence of Bell-type interuniversal entanglement in varying fundamental constants cosmological model