Relativistic generalizations of gravity-induced localization models

TL;DR

This paper introduces the first consistent relativistic models for gravity-induced wavefunction localization, addressing the need for negative energy fields to achieve localization without unitarity violations.

Contribution

It presents the first relativistic generalizations of gravity-induced localization models, incorporating negative energy fields to maintain localization while ensuring theoretical consistency.

Findings

First relativistic localization models developed

Negative energy fields are essential for localization

Models can be ultraviolet-finite

Abstract

Nonunitary versions of Newtonian gravity leading to wavefunction localization admit natural special-relativistic generalizations. They include the first consistent relativistic localization models. At variance with the unified model of localization and gravity, the purely localizing version requires negative energy fields, which however are less harmful than usual and can be used to build ultraviolet-finite theories.