Observers in Spacetime and Nonlocality

TL;DR

This paper critically examines the role of observers in relativity, emphasizing the nonlocal connection between noninertial and inertial observers, and explores nonlocal electrodynamics and spin-rotation coupling effects.

Contribution

It introduces a nonlocal electrodynamics framework for non-uniformly rotating observers, advancing understanding of observer-dependent measurements in relativity.

Findings

Nonlocal connection between noninertial and inertial observers

Implications for spin-rotation coupling phenomena

Extension of Bohr-Rosenfeld principle to non-inertial frames

Abstract

Characteristics of observers in relativity theory are critically examined. For field measurements in Minkowski spacetime, the Bohr-Rosenfeld principle implies that the connection between actual (i.e., noninertial) and inertial observers must be nonlocal. Nonlocal electrodynamics of non-uniformly rotating observers is discussed and the consequences of this theory for the phenomenon of spin-rotation coupling are briefly explored.