我们计算 five-qubit 的特征值和特徵向量各向同性的海森堡在一个外部磁场当模特儿,并且为二近邻居的 qubits 的同时发生给分析结果。一个磁场能消除退化并且改变观点系统的状态。因此增加磁场的价值能为铁磁性的反和铁磁性的大小写两个都在某个范围导致纠纷。
We calculate the eigenvalues and eigenvectors of a five-qubit isotropic Heisenberg model in an external magnetic field, and give analytical results for the concurrence of two nearest-neighbor qubits. A magnetic field can eliminate degeneration and change the ground state of the system. Therefore increasing the value of the magnetic field can induce entanglement in a certain range both for the antiferromagnetic and ferromagnetic case.