Quantum Gravity as Gravitized Quantum Theory

TL;DR

This paper proposes a novel view of quantum gravity as a fully dynamical quantum theory where the geometry of the state space is mutable, addressing vacuum energy, experimental tests, and particle spectrum puzzles.

Contribution

It introduces the concept of gravitized quantum theory, linking quantum state-space dynamics with spacetime geometry, and discusses experimental and theoretical implications.

Findings

New approach to vacuum energy problem via phase space regularization and holographic bound.

Proposes experimental tests involving higher order quantum interference.

Addresses particle mass spectrum and mixing angles as quantum gravity signatures.

Abstract

Starting from a new understanding of the vacuum energy problem based on the combination of the phase space regularization and the holographic bound, we argue that quantum gravity should be understood as gravitized quantum theory, that is, quantum theory wherein the geometry and topology of the state-space if fully dynamical, in analogy with the dynamical nature of spacetime in Einstein's general relativity. Apart from the vacuum energy problem viewed as a quantum gravity problem, we discuss the "smoking gun" experiments involving higher order quantum interference, as well as experimental probes of the statistics of spacetime quanta. Finally, we address the conundrum of the intricately patterned spectrum of masses of elementary particles as well as their mixing angles, as another telltale problem of quantum gravity viewed as gravitized quantum theory.