Constraints on Torsion from Lorentz Violation

TL;DR

This paper uses experimental tests of Lorentz violation to set extremely tight constraints on spacetime torsion components, improving our understanding of possible deviations from standard physics.

Contribution

It introduces a novel method of constraining spacetime torsion by leveraging existing Lorentz violation experiments, achieving unprecedented sensitivity levels.

Findings

Constraints on 19 torsion components at 10^{-31} GeV level

Demonstrates the effectiveness of Lorentz violation tests in probing spacetime geometry

Provides new bounds that challenge or refine theoretical models involving torsion

Abstract

Exceptional sensitivity to spacetime torsion can be achieved by searching for its couplings to fermions. Recent experimental searches for Lorentz violation are exploited to extract new constraints involving 19 of the 24 independent torsion components down to levels of order 10^{-31} GeV.