Clocks, computers, black holes, spacetime foam, and holographic principle

TL;DR

This paper explores the deep connections between clocks, computers, black holes, spacetime foam, and the holographic principle, revealing how they collectively relate to information, gravity, and quantum uncertainty, with implications for quantum fluctuations detectable by gravitational-wave experiments.

Contribution

It demonstrates the interconnected physics of computation, black hole radiation, and the holographic principle, suggesting larger quantum spacetime fluctuations than previously thought.

Findings

Limits to computation and clock precision are linked to black hole radiation.

Space-time undergoes large quantum fluctuations detectable by future experiments.

The holographic principle is fundamentally connected to quantum uncertainty and gravity.

Abstract

What do simple clocks, simple computers, black holes, space-time foam, and holographic principle have in common? I will show that the physics behind them is inter-related, linking together our concepts of information, gravity, and quantum uncertainty. Thus, the physics that sets the limits to computation and clock precision also yields Hawking radiation of black holes and the holographic principle. Moreover, the latter two strongly imply that space-time undergoes much larger quantum fluctuations than what the folklore suggests --- large enough to be detected with modern gravitational-wave interferometers through future refinements.