title: Lorentz and CPT tests with spin-polarized solids
abstract: 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.
authors.affiliation: Physics Department, Colby College, Waterville, Maine 04901, USA.
authors.initials: R
authors.lastname: Bluhm
authors.initials: VA
authors.lastname: Kostelecky