Physical Review X Quantum

Researchers from The University of Osaka have developed a way to efficiently prepare the “magic states” necessary for quantum computers to be resistant to errors. Their technique, called “zero-level distillation,” involves working with qubits at the physical or zeroth level as opposed to higher, more abstract levels. The spatial and temporal overhead of quantum computers prepared from these states using this technique is around several dozen times lower than that of those prepared from conventional methods.