First antimatter qubit created as antiproton stays coherent for nearly a minute

Scientists at CERN created the first antimatter qubit, keeping an antiproton oscillating between quantum states for nearly a minute. This breakthrough allows more precise matter-antimatter comparisons and could help explain the universe's matter-antimatter imbalance. The technique, called coherent quantum transition spectroscopy, may improve future antiproton measurements 10 to 100 times. Researchers plan to extend coherence times up to 500 seconds with new experiments.