Topos Mediated Gravity: Toward the Categorical Resolution of the Cosmological Constant Problem

TL;DR

This paper proposes a novel categorical approach using topoi to address the cosmological constant problem by integrating gravity into quantum systems, leading to potential nullification of vacuum energy contributions.

Contribution

It introduces a framework where gravity is incorporated into the spectral topos of quantum systems, offering a new perspective on the cosmological constant problem through higher symmetries.

Findings

Lowest energy modes of quantum harmonic oscillators are gravitationally nullified.

The approach suggests a fundamental higher symmetry group of gravity.

Vanishing contributions to the cosmological constant under certain interpretations.

Abstract

According to D\"oring and Isham the spectral topos corresponds to any quantum system. The description of a system in the topos becomes similar to this given by classical theory, up to multiplication of observables. Logic of the emergent theory is rather intuitionistic than classical. Adding to the language the type of self-adjoint operators and their products, which are interpreted by the on-stages daseinisations and their products, one gets commuting presheaves in the topos. The interpretation agrees with on-stages daseinisations of squares up to some automorphisms of the topos. The uncertainty principle does not hold for such an interpretation. According to the recent proposition by the author, topoi can modify local smooth spacetime structure. A way how to add gravity into the spectral topos of a system is presented. Assuming that a quantum system modifies the local spacetime structure and interacts with a gravitational field via the spectral topos, the lowest energy modes of a quantum harmonic oscillator are gravitationally nullified. Moreover, a theory of gravity and systems should be symmetric with respect to the 2-group of automorphisms of the category of topoi. Under the $\delta_0$-interpretation for the hamiltonian of a quantum harmonic oscillator, its lowest modes have vanishing contributions to the cosmological constant. This is related with a fundamental higher symmetry group of gravity. Without the $\delta_0$-interpretation, small non-zero value of the effective cosmological constant can be approached.