SciencefromNature3 days agoFour ppm measurement of the antihydrogen ground-state hyperfine splitting - NatureGround-state and 2S hyperfine splittings in antihydrogen enable sensitive CPT tests and Sternheim-interval determinations with reduced nuclear-structure dependence.
OMG sciencefromBig Think2 months agoWhy "CPT" is the Universe's most unbreakable symmetryCPT symmetry is a fundamental, unbreakable symmetry that applies universally to all physical laws and phenomena in the Universe.