We investigate the quantum-memory-assisted entropic uncertainty relation (QMA-EUR) in a Heisenberg XYZ mixed-spin (1/2, 1) model. Coupling strength, Dzyaloshinskii–Moriya (DM) interaction and inhomogeneous magnetic field, respectively, contributing to QMA-EUR by a thermal entanglement in the hybrid-spin model are studied in detail. Furthermore, we compare the uncertainty of the bipartite hybrid model with those of qubit–qubit and qutrit–qutrit systems. Meanwhile, the effects of local PT-symmetric operation and weak measurement on the steering of entropic uncertainty are analyzed. We find that the local PT-symmetric operation can reduce the entropic uncertainty, and the entropic uncertainty can also be decreased by weak measurement reversal.

我们研究了Heisenberg XYZ混合自旋（1/2，1）模型中的量子记忆辅助熵不确定性关系（QMA-EUR）。详细研究了混合自旋模型中的耦合强度，Dzyaloshinskii-Moriya（DM）相互作用和不均匀磁场，它们通过热缠结而对QMA-EUR产生影响。此外，我们将二分混合模型的不确定性与qubit–qubit和qutrit–qutrit系统的不确定性进行了比较。同时，分析了局部PT对称运行和弱测量对熵不确定性转向的影响。我们发现，局部PT对称操作可以减小熵不确定性，并且也可以通过弱的测量​​反转来减小熵不确定性。