Most of the work involving entanglement measurement focuses on systems that can be modeled by two interacting qubits. This is due to the fact that there are few studies presenting entanglement analytical calculations in systems with spins s > 1/2. In this paper, we present for the first time an analytical way of calculating thermal entanglement in a dimension 2 ⊗ 3 Heisenberg chain through the distance between states. We use the Hilbert-Schmidt norm to obtain entanglement. The result obtained can be used to calculate entanglement in chains with spin-1/2 coupling with spin-1, such as ferrimagnetic compounds as well as compounds with dimer-trimer coupling.

大多数涉及纠缠测量的工作都集中在可以由两个相互作用的量子位建模的系统上。这是因为很少有研究在自旋s > 1/2 的系统中提出纠缠分析计算。在本文中，我们首次提出了一种通过状态之间的距离计算维度 2 ⊗ 3 海森堡链中热纠缠的分析方法。我们使用 Hilbert-Schmidt 范数来获得纠缠。获得的结果可用于计算自旋 1/2 与自旋 1 偶联的链中的纠缠，例如亚铁磁性化合物以及具有二聚体-三聚体偶联的化合物。