On Dualities Of Primordial Perturbation Spectra
Yun-Song Piao
TL;DR
This paper explores the dualities in primordial perturbation spectra across different cosmological phases, analyzing the full range of the equation of state parameter w to understand their relationships.
Contribution
It introduces a comprehensive analysis of the dualities in primordial spectra for all values of the equation of state parameter w, extending previous studies.
Findings
Identifies duality relations between spectra in different phases.
Provides a unified framework for understanding primordial perturbations.
Highlights the symmetry in perturbation spectra across various cosmological models.
Abstract
In this paper, we discuss the dualities of the primordial perturbation spectra from various expanding/contracting phases for full space of parameter of state equation.
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