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Related Experiment Videos

Lorentz and CPT tests with spin-polarized solids

Bluhm1, Kostelecky

  • 1Physics Department, Colby College, Waterville, Maine 04901, USA.

Physical Review Letters
|October 4, 2000
PubMed
Summary

Experiments with spin-polarized matter show high sensitivity to Lorentz and CPT violation. This research could reveal spontaneous Lorentz symmetry violation at the Planck scale using torsion pendulum data.

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Area of Science:

  • Physics
  • Quantum Mechanics
  • Particle Physics

Background:

  • Lorentz and CPT symmetries are fundamental in physics.
  • Testing these symmetries provides insights into quantum gravity and new physics.

Purpose of the Study:

  • To investigate Lorentz and CPT violation in the electron sector.
  • To assess the sensitivity of spin-polarized matter experiments to these violations.

Main Methods:

  • Utilizing macroscopic samples of spin-polarized matter.
  • Analyzing data from spin-polarized torsion pendulum experiments.

Main Results:

  • Macroscopic spin-polarized matter experiments offer exceptional sensitivity to Lorentz and CPT violation.
  • Existing torsion pendulum data shows sensitivity rivaling all other experiments in this sector.

Conclusions:

  • Spin-polarized torsion pendulums are powerful tools for probing fundamental symmetries.
  • These experiments have the potential to reveal spontaneous Lorentz symmetry violation at the Planck scale.

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