A team led by scientists and engineers at the University of Washington 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 each only a single layer of atoms thick they detected signatures of “fractional quantum anomalous Hall” (FQAH) states. The team’s discoveries mark a first and promising step in constructing a type of fault-tolerant qubit because FQAH states can host anyons strange “quasiparticles” that have only a fraction of an electron’s charge. Some types of anyons can be used to make what are called “topologically protected” qubits, which are stable against any small, local disturbances.
Hong-kong
Japan
University-of-hong-kong
Hong-kong-general
Eric-anderson
Chong-wang
Xiaowei-zhang
Yinong-zhang
Jiaqi-cai
Kenji-watanabe
Wang-yao
Takashi-taniguchi