Muochrony: Exploring Time and Frequency Applications of Cosmic Muons

TL;DR

This paper presents Muochrony, a novel approach using cosmic muons for precise time synchronization and dissemination, potentially enhancing global timekeeping and navigation systems beyond traditional methods.

Contribution

It introduces the Cosmic Time Synchronizer (CTS) technology, demonstrating its capability to synchronize atomic clocks and disseminate time using cosmic muons, a new application in time metrology.

Findings

Successful prototype installation at INRIM

Initial experiments show effective clock synchronization

Potential to complement GNSS in critical applications

Abstract

This study outlines the progress of a collaborative effort between INRIM and MUOGRAPHIX-The University of Tokyo, focusing on using muons from cosmic-ray-induced Extensive Air Showers (EAS) to synchronize atomic clocks and disseminate atomic time references. The approach, known as the Cosmic Time Synchronizer (CTS), proposed by the University of Tokyo, serves as the foundation for a new field of study called Muochrony. The paper details the CTS technology, underlying principles, and the prototype system installed at the INRIM RadioNavigation Laboratory. Additionally, it reports on the initial metrological evaluation and the first experiments conducted to synchronize diverse atomic clock types and disseminate the UTC(IT) timescale using cosmic muons. CTS has the potential to synchronize and disseminate time references in critical applications securely and could also complement GNSS in areas not covered by RF signals.