Fundamental physical constants: current results in search for variations and their description

TL;DR

This paper reviews current experimental and observational efforts to detect potential temporal variations in fundamental physical constants, emphasizing their importance for physics and metrology.

Contribution

It provides a comprehensive analysis of recent data on FPC variations and highlights the significance of long-term studies for fundamental physics and measurement science.

Findings

Current data constrains FPC variations within experimental limits

Certain constants show potential signs of variation over large time scales

Long-term monitoring is crucial for understanding fundamental physics

Abstract

We consider the current results in search for and description of temporal variations of fundamental physical constants (FPCs) obtained under laboratory and astrophysical conditions. On the basis of fixed values of base constants, those FPCs have been chosen that can exhibit variations of greatest interest from the viewpoints of physics and metrology. An analysis of the current data concerning these constants is performed, and estimates of their variations on large time scales are presented. We point out the significance of studying long-term FPC variations for both practical and fundamental metrology.