【作者单位】1 Department of Physics, Taiyuan Normal University, 030619, Jinzhong, China; 2 Institute of Computational and Applied Physics, Taiyuan Normal University, 030619, Jinzhong, China
【年份】2022
【卷号】Vol.137 No.4
【摘要】 From the perspective of nonlocal operation, we investigate the quantum Fisher information of N -qubit W and GHZ superposition state. Taking advantage of the general Ising model and Lipkin–Meshkov–Glick model, we analytically present the QFI of N -qub...