Classicality, Matter-Antimatter Asymmetry, and Quantum-Gravity Deformed Uncertainty Relations

TL;DR

This paper explores how quantum gravity-induced modified uncertainty relations can cause decoherence and CPT violation, potentially explaining classical behavior and matter-antimatter asymmetry.

Contribution

It demonstrates that time-dependent uncertainty relations in quantum gravity can lead to decoherence and CPT violation, offering new insights into classicality and matter-antimatter asymmetry.

Findings

Modified uncertainty relations induce quantum decoherence.

Such relations can lead to CPT violation.

Potential explanation for matter-antimatter asymmetry.

Abstract

Some of the recent work on quantum gravity has involved modified uncertainty relations such that the products of the uncertainties of certain pairs of observables increase with time. It is here observed that this type of modified uncertainty relations would lead to quantum decoherence, which could explain the classical behavior of macroscopic systems, and CPT violation, which coud provide the seed for the emergence of a matter-antimatter asymmetry.