【作者单位】1Department of Physics, Taiyuan Normal University, Jinzhong, 030619, China; 2Institute of Computational and Applied Physics, Taiyuan Normal University, Jinzhong, 030619, China; 3School of Physics and Information Engineering, Shanxi Normal University, Taiyuan, 030031, China;
【年份】2023
【卷号】Vol.107 No.1
【页码】012403
【摘要】 We study the performance of an N -qubit W superposition state composed of a W state and its obverse in quantum metrology. Taking advantage of the general Ising-type Hamiltonian , we analytically present the quantum Fisher information of an N -qubit ...
