Lorentz and CPT tests with spin-polarized solids
Experiments using macroscopic samples of spin-polarized matter offer exceptional sensitivity to Lorentz and CPT violation in the electron sector. Data from existing experiments with a spin-polarized torsion pendulum provide sensitivity in this sector rivaling that of all other existing experiments and could reveal spontaneous violation of Lorentz symmetry at the Planck scale.
Bluhm
R
Physics Department, Colby College, Waterville, Maine 04901, USA.
Kostelecky
VA