# Inflationary tensor fossils deformed by solid matter -- scalar field interaction

## TL;DR

This paper investigates how superhorizon tensor perturbations influence scalar perturbations in a cosmological model with solid matter and scalar field, leading to observable asymmetries in the CMB and cosmic structure.

## Contribution

It introduces a combined inflationary model with solid matter and scalar field, showing enhanced scale dependence of scalar spectrum deformation due to tensor perturbations.

## Key findings

- Deformation causes asymmetry in the scalar power spectrum.
- Enhanced logarithmic scale dependence compared to simpler models.
- Potential observable imprints on CMB anisotropies.

## Abstract

We study effect of superhorizon tensor perturbations on scalar perturbations, so called effect of clustering fossils, in cosmological model in which inflation is driven by both solid matter and scalar field. The effect deforms primordial scalar power spectrum causing asymmetry in it, which leaves imprint on CMB anisotropies and the cosmic structure. Parameter space of this combined model allows for enhancement of logarithmic scale dependence of this deformation, as opposed to simpler models in which such scale dependence is suppressed by slow-roll parameters.