Phys.org  December 19, 2024 For quantum computers the property called “magic” is critical. An international team of researchers (UK, Australia) considered the property of magic, which distinguished the quantum states leading to a genuine computational advantage over classical states when used in algorithms. They examined top-antitop pair production at the LHC produced magic tops, where the amount of magic varied with the kinematics of the final state. They compared results for individual partonic channels and at proton level. They showed that averaging over final states typically increased magic which contrasted with entanglement measures, such as the concurrence, which typically decreased. […]