Certified Private Quantum Time Ticks Away Faster than Any Classical Clock

TL;DR

This paper introduces entangled quantum clocks that operate faster than classical clocks at certain angles and proposes a protocol for certified private time that guarantees a quantum advantage in timing.

Contribution

It presents the concept of entangled clocks and a protocol for certified private time, demonstrating quantum speedup over classical synchronization methods.

Findings

Quantum clocks tick faster than classical models at obtuse angles.

The protocol guarantees a timeline faster than local realistic mechanisms.

Demonstrates a quantum advantage in timekeeping and synchronization.

Abstract

We introduce the concept of an entangled clock, where the flow of time is operationally defined by the discrete registration of measurement outcomes on a singlet state. Comparing the synchronization rate of two such clocks against classical models, we find that at obtuse relative angles, the quantum clock ticks strictly faster than this classical benchmark. We further propose a protocol for Certified Private Time, adapting device-independent randomness certification to the temporal domain; this guarantees a sovereign timeline that ticks away faster than any local realistic mechanism allows.