A general condition of inflationary cosmology on trans-Planckian physics

TL;DR

This paper investigates how initial conditions respecting the minimal uncertainty principle influence the inflationary power spectrum, emphasizing the role of trans-Planckian physics in early universe models.

Contribution

It introduces a generalized initial condition framework and computes the resulting power spectrum, highlighting effects of trans-Planckian physics on inflationary predictions.

Findings

Power spectrum depends on perturbations below the fundamental scale.

Minimal uncertainty initial conditions alter standard inflationary results.

Trans-Planckian effects can leave observable imprints on cosmological fluctuations.

Abstract

We consider a more general initial condition satisfying the minimal uncertainty relationship. We calculate the power spectrum of a simple model in inflationary cosmology. The results depend on perturbations generated below a fundamental scale, e.g. the Planck scale.