We propose a novel scheme for generating N-qubit GHZ entangled state with a hybrid quantum system,which consists of N nitrogen-vacancy centers,N transmission line resonators,a current-biased Josephson junction superco...We propose a novel scheme for generating N-qubit GHZ entangled state with a hybrid quantum system,which consists of N nitrogen-vacancy centers,N transmission line resonators,a current-biased Josephson junction superconducting qubit,and three kinds of interaction Hamiltonians.The proposal requires no adjustment of the qubit level spacings during the entire operation.Moreover,it is shown that the operation time is independent of the number of qubits.The present proposal is quite useful,and is a promising step to realize the large-sized quantum networks for quantum information processing and quantum computation.展开更多
基金the National Natural Science Foundation of China under Grant Nos 11174100 and 11275064the Program for Changjiang Scholars and Innovative Research Team in University under Grant No IRT0964.
文摘We propose a novel scheme for generating N-qubit GHZ entangled state with a hybrid quantum system,which consists of N nitrogen-vacancy centers,N transmission line resonators,a current-biased Josephson junction superconducting qubit,and three kinds of interaction Hamiltonians.The proposal requires no adjustment of the qubit level spacings during the entire operation.Moreover,it is shown that the operation time is independent of the number of qubits.The present proposal is quite useful,and is a promising step to realize the large-sized quantum networks for quantum information processing and quantum computation.