Cosmological Avatars of the Landscape I: Bracketing the SUSY Breaking Scale

TL;DR

This paper explores how quantum entanglement in the universe's wavefunction constrains the supersymmetry breaking scale, establishing bounds that could be tested by collider experiments.

Contribution

It introduces a novel approach linking quantum entanglement effects to bounds on the SUSY breaking scale within the landscape framework.

Findings

SUSY breaking scale is bounded between 10^{-10} and 10^{-8} times the Planck mass.

Lower bound is significantly higher than expected, offering potential for experimental verification.

Quantum entanglement effects can influence fundamental parameters in cosmology.

Abstract

We investigate the effects of quantum entanglement between our horizon patch and others due to the tracing out of long wavelength modes in the wavefunction of the Universe as defined on a particular model of the landscape. In this, the first of two papers devoted to this topic, we find that the SUSY breaking scale is bounded both above {\em and} below: $10^{-10} M_{\rm P}\leq M_{\rm SUSY}\leq 10^{-8} M_{\rm P}$ for $GUT$ scale inflation. The lower bound is at least five orders of magnitude larger than the expected value of this parameter and can be tested by LHC physics.