A team led by scientists and engineers at the 糖心原创 has announced a significant advancement in developing fault-tolerant qubits for quantum computing. In a pair of papers published June 14 in Nature and June 22 in Science, they report that, in experiments with flakes of semiconductor materials 鈥 each only a single layer of atoms thick 鈥 they detected signatures of 鈥渇ractional quantum anomalous Hall鈥 (FQAH) states. The team鈥檚 discoveries mark a first and promising step in constructing a type of fault-tolerant qubit because FQAH states can host anyons 鈥 strange 鈥渜uasiparticles鈥 that have only a fraction of an electron鈥檚 charge. Some types of anyons can be used to make what are called 鈥渢opologically protected鈥 qubits, which are stable against any small, local disturbances.
June 27, 2023