We propose the schemes for implementing hyperentangled state analysis and generating four-electron high entan-gled states (including cluster state, |X) state, and symmetric Dicke state) based on the charge detecti...We propose the schemes for implementing hyperentangled state analysis and generating four-electron high entan-gled states (including cluster state, |X) state, and symmetric Dicke state) based on the charge detection of free electrons. These schemes are deterministic and rely only on charge detection and single-spin rotations. This method, which uses noninteracting electrons, is not only efficient but also saves on quantum resources.展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.11165015,61068001,and 11264042)the Natural Science Foundationof Jilin Province,China(Grant No.201115226)
文摘We propose the schemes for implementing hyperentangled state analysis and generating four-electron high entan-gled states (including cluster state, |X) state, and symmetric Dicke state) based on the charge detection of free electrons. These schemes are deterministic and rely only on charge detection and single-spin rotations. This method, which uses noninteracting electrons, is not only efficient but also saves on quantum resources.