Now Broadcasting in Planck Definition

TL;DR

This paper proposes that space's finite information content, limited by the Planck broadcast bandwidth, causes subtle quantum fluctuations in position, which could be experimentally detectable and influence our understanding of quantum geometry.

Contribution

It introduces a model where space's quantum wave function is limited by Planck-scale information transfer, leading to observable positional fluctuations.

Findings

Positional fluctuations are predicted at Planck-scale frequencies.

These fluctuations could be detectable with new experiments.

Space-time appears classical on large scales despite underlying quantum noise.

Abstract

If reality has finite information content, space has finite fidelity. The quantum wave function that encodes spatial relationships may be limited to information that can be transmitted in a "Planck broadcast", with a bandwidth given by the inverse of the Planck time, about $2\times 10^{43}$ bits per second. Such a quantum system can resemble classical space-time on large scales, but locality emerges only gradually and imperfectly. Massive bodies are never perfectly at rest, but very slightly and slowly fluctuate in transverse position, with a spectrum of variation given by the Planck time. This distinctive new kind of noise associated with quantum geometry would not have been noticed up to now, but may be detectable in a new kind of experiment.