Spooky steps to a quantum network

 作者:支配虢     |      日期:2019-03-02 02:20:01
By Zeeya Merali EVEN if quantum computers can be made to work, there will still be two big obstacles preventing quantum networks becoming a reality. First, quantum bits, or qubits, stored in matter will have to be transferred to photons to be transmitted over long distances. Secondly, errors that creep in during transmission have to be corrected. Two unrelated studies have now shown how to clear these hurdles. Both studies use quantum entanglement, a spooky property that links particles however far apart they are. Measuring a quantum property on one particle immediately affects the other,