The Greenberger-Horne-Zeilinger(GHZ)state with N entangled particles enables various quantum information processing,such as quantum sensing[1,2],secure communication[3],and distributed computing[4].Fundamentally,it im...The Greenberger-Horne-Zeilinger(GHZ)state with N entangled particles enables various quantum information processing,such as quantum sensing[1,2],secure communication[3],and distributed computing[4].Fundamentally,it improves measurement precision from the standard quantum limit(1/N~(1/2))to the Heisenberg limit(1/N)[1].展开更多
文摘The Greenberger-Horne-Zeilinger(GHZ)state with N entangled particles enables various quantum information processing,such as quantum sensing[1,2],secure communication[3],and distributed computing[4].Fundamentally,it improves measurement precision from the standard quantum limit(1/N~(1/2))to the Heisenberg limit(1/N)[1].
