Novel Possibility of Nonstandard Statistics in the Inflationary Spectrum of Primordial Inhomogeneities

Abstract

Inflation is considered one of the cornerstones of modern cosmology. However, the account of the origin of cosmic structure, as provided by the standard inflationary paradigm, is not fully satisfactory. The fundamental issue is the inability of the usual account to point out the physical mechanism responsible for generating the inhomogeneity and anisotropy of our Universe, starting from the exactly homogeneous and isotropic vacuum state associated with the early inflationary regime. We briefly review this issue here together with the proposal to address this shortcoming in terms of a dynamical collapse of the vacuum state of the inflaton field, which has been considered in previous works. The main goal of this manuscript is to discuss certain statistical aspects associated with the collapse and its implications in the primordial spectrum, particularly those connected with the possible appearance of a novel type of unusual correlations.

References in corpus (10)

• Realistic clocks, universal decoherence and the black hole information paradox
• The Pursuit of Non-Gaussian Fluctuations in the Cosmic Microwave Background
• Cosmological constraints on non-standard inflationary quantum collapse models
• The slow roll condition and the amplitude of the primordial spectrum of cosmic fluctuations: Contrasts and similarities of standard account and the "collapse scheme"
• Multiple quantum collapse of the inflaton field and its implications on the birth of cosmic structure
• The Seeds of Cosmic structure as a door to New Physics
• Fundamental decoherence from relational time in discrete quantum gravity: Galilean covariance
• A signature of quantum gravity at the source of the seeds of cosmic structure?
• The Oddly Quiet Universe: How the CMB challenges cosmology's standard model
• Dynamical Wave Function Collapse: Could It Have Cosmological Consequences?

Cited by in corpus (5)

• Models of Wave-function Collapse, Underlying Theories, and Experimental Tests
• Emergence of inflationary perturbations in the CSL model
• Expectation of primordial gravity waves generated during inflation
• Origin of structure: Statistical characterization of the primordial density fluctuations and the collapse of the wave function
• A dialog on the fate of information in black hole evaporation